Soru 1 : Do you think the house was burnt down ____?
A) by law
B) by heart
C) by accident
D) by means of
E) by hand
Cevap 1 : C
Soru 2 : From the article it is apparent that there has been a/an ____ fall in world grain production in recent decade.
A) rigid
B) invisible
C) substantial
D) diverse
E) apparent
Cevap 2 : C
Çözüm 2 : Son on yılda dünya tahıl üretiminde" substantial- önemli, büyük bir düşüş olduğu doğru yanıttır.
Soru 3 : The social sciences are a range of disciplines within the arts and humanities ---- principal concerns are
the study of various aspects of society.
A) what B) whose C) that D) how E) when
Cevap 3 : B
Çözüm 3 : Sosyal bilimler, güzel sanatlar ve beşeri bilimler içinde bir disiplinler dizisidir ki onun temel ilgi alanı toplumun çeşitli yönlerinin çalışılmasıdır.
“principal concerns =temel ilgi alanı” isim cinsi bir kelime grubu olduğu için burada iyelik bildiren bir ilgi zamiri gereklidir. O da “whose” olacaktır.
Soru 4 : In making discriminations within the revenue range all our home interests should ____ practicable be equally protected.
A) as if
B) despite
C) as far as
D) even before
E) such as
Cevap 4 : B
Soru 5 : As with all revolutions, the causes of the American Revolution which separated the original thirteen American colonies from Great Britain were social, economic and political and so inextricably interwoven that it is difficult to appraise them. First there was the distance from Great Britain and the environment of a new country which, whether they willed it or not, had gradually over a period of 150 years turned Englishmen into Americans. The older stock was largely English but the bulk of them, as a contemporary historian commented, “knew little of the mother country, having only heard of her as a distant kingdom, the rulers of which had in the preceding century persecuted and banished their ancestors to the woods of America”. With each generation and each move westward old contacts were broken. Furthermore, large groups of colonists had come from Germany, Ireland and other parts of Europe and had no ties with England and, in the case of the Irish, no affection.
The writer points out that, among the non-British colonists in America, it was the Irish who -------.
A) had suffered most at the hands of the British
B) were the least friendly towards Britain
C) united with the German colonists to oppose Britain
D) were among the first ones to settle there
E) felt they had been unjustly banished to these parts
Cevap 5 : B
Soru 6 :
Cevap 6 :
Soru 7 : The subject of statics is ______the calculation of the forces acting on and within structures that are in equilibrium.
A) taken care of
B) turned up
C) kept off
D) given rise to
E) concerned with
Cevap 7 : E
Soru 8 : The identification of art and beauty is at the bottom of all our difficulties in the ____ of art.
A) amendment
B) ambition
C) application
D) appreciation
E) approach
Cevap 8 : C
Soru 9 : For more than three thousand years, from the age of the pharaohs until the 1500s, people ---- that the sun, the stars, and the planets ---- around the
earth.
A) have believed / had moved
B) believe / have moved
C) had believed / move
D) were believing / could have moved
E) believed / moved
Cevap 9 : E
Çözüm 9 : Zaman ipçlarından be zaman bağlaçlarına dikkat ederek “until the 1500s,” yapısından birinci boşlukta “simple past” bir yapı olan “believed” in geleceği kolaylıkla bulunur. “people believed that “ yapısı bir “noun clause” yapısı olup isim cümleciği “simple past” olabilir.(S.Past + s.past = moved)
Soru 10 : Mosquitoes ____ people in the summer, and they have the potential to endanger human health by carrying deadly agents such as malaria and yellow fever.
Cevap 10 : annoy
Soru 11 : Flightless birds evolved from flying ancestors; there are about forty species in existence today. The best-known flightless birds are the ostrich, emu, cassowary, rhea and penguins. Most flightless birds evolved in the absence of predators, on islands, and lost the power of flight because they had few enemies. A notable exception, the ostrich, which lives in the African savannas, has claws on its feet to use as a weapon against predators. Two key differences between flying and flightless birds are the smaller wing bones of flightless birds and the absent (or greatly reduced) keel on their breastbone. The keel anchors muscles needed for wing movement. Flightless birds also have more feathers than flying birds. New Zealand has more species of flightless birds than any other country. One reason is that until the arrival of humans roughly 1000 years ago, there were no land mammals in New Zealand other than three species of bat; the main predators of flightless birds were larger birds. With the introduction of mammals (among them humans) to the habitats of flightless birds, many have become extinct, including the Great Auk, the Dodo, and the Moas. Flightless birds are the easiest to take care of in captivity because they do not have to be caged. Ostriches were once farmed for their decorative feathers. Today they are raised for meat and for their skins, which are used to make leather.
51 .We can learn from the passage that ...............
A) flying birds evolved from the flightless birds
B) there are forty types of flying birds
C) flying birds are threats for the flightless birds
D) flightless birds used to have the ability of flying before they began to evolve
E) the evolution of the flightless birds began with the increase in the number of the predators
Cevap 11 : D
Soru 12 : Being a teacher at a public school is tiring ..............
A) both physically and emotionally
B) my mother is planning to start at a private school
C) but was also very enjoyable
D) and working very hard to deserve the salary
E) has never been a well-paid job
Cevap 12 : A
Soru 13 : I'm sorry to cancel, but I just don't ............. going dancing tonight.
A) drop out of
B) deal with
C) feel up to
D) cut down on
E) break into
Cevap 13 : C
Soru 14 : If we ---- the work by the end of this month, all of us ----.
A) didn’t finish / would have been dismissed
B) don’t finish / will be dismissed
C) can’t finish / were dismissed
D) won’t finish / are dismissed
E) hadn’t finished / would be dismissed
Cevap 14 : B
Soru 15 : What's really -----issue is the political structure ----- which Soviet communism was erected.
A) at / on
B) for /from
C) to / through
D) by / in
E) over / with
Cevap 15 : A
Çözüm 15 : (A) What's really at issue(gündemde olan, tartşılan) is the political structure on which (Sovyet komünizminin üzerine inşa edildiği) Sovyet communism was erected. İkinci kısımda “on” ilgeci “erect” üzerine kurmak fiiline ait olup ilgi zamirinin önüne alınmıştır.
Soru 16 : Commercial banks commonly ____ checking accounts, savings accounts and various types of loans
A) expand
B) provide
C) improve
D) consult
E) respect
Cevap 16 : B
Çözüm 16 : sağlamak, temin etmek, ihtiyacını karşılamak, karşılamak, şart koşmak
Soru 17 : I did my best to ____ the two brothers who had quarrelled, but it didn’t work.
A) reconcile
B) alienate
C) isolate
D) depart
E) combine
Cevap 17 : A
Soru 18 : Until the development of the first scientific dating techniques around the beginning of the last century, dating in archaeology depended almost entirely on historical methods. ----- Such dating methods are still of immense value today.
A) For instance, excavations in Egypt at the and of the 19th century brought to light pottery of Aegean origin
B) In the ancient world, literate societies such as these recorded their own history in written documents
C) The chronological system requires even more careful reconstruction, and any list of rulers or kings needs to be reasonably complete
D) Other areas of Mesoamerica had their own calendars which operated on similar lines
E) That is to say, it relied on archaeological connections with chronologies and calendars that people in ancient times had themselves established
Cevap 18 : E
Çözüm 18 : Açıklama Parçanın anlam tamamlayacak bir geçiş cümlesinin bulunacağı sorularda boşluktan önceki ve sonraki cümlelerin çok iyi incelenmesi gerekmektedir. Boşluktan sonra “böyle tarihlendirme metotlarının günümüzde oldukça fazla önem taşıdığından” söz etmektedir. Boşluğa gelecek cümlenin bu yargıya uyan ve tarihsel yaklaşımı olan bir ifade olması gerekir. Bu da “E” şıkkında verilmiştir.
Soru 19 :
Cevap 19 :
Soru 20 :
Cevap 20 :
Soru 21 : One of the most interesting applications of laser light is the production of three-dimensional
images called “holograms.”
A) “Hologram” denilen ve üç boyutlu olan görüntülerin üretilmesi, lazer ışığının en ilginç kullanımlarından bir tanesidir.
B) Lazer ışığının en ilginç uygulamalarından biri,
“hologram” adı verilen üç boyutlu görüntülerin üretilmesidir.
C) “Hologram” olarak bilinen üç boyutlu görüntüler,lazer ışığının en ilginç bir şekilde kullanımı ile
üretilmektedir.
D) Lazer ışığının en ilginç bir başka kullanımı, “hologram” olarak tanımlanan üç boyutlu görüntü
üretimidir.
E) En ilginç bir uygulama ile, lazer ışığı, “hologram” denilen üç boyutlu görüntülerin üretiminde kullanılmaktadır.
Cevap 21 : B
Çözüm 21 : Çok kısa yoldan giderek soruyu çözümleyelim : “One of=-den biri” yapısıdır.bu yapıyı tüm şıklarda arayalım.Tüm şıkları eleyip kolayca B şıkkına ulaşıyoruz.
Özne grubunu bulalım: “One of the most interesting applications of laser light= Lazer ışığının en ilginç uygulamalarından biri”
Soru 22 : We waste a third of our lives ……. or that’s how some people see it
Cevap 22 : sleeping
Soru 23 : Some people believe that meat consumption (22) .............. to famine and depletes the Earth's natural resources. Indeed, it is often argued that cows and sheep require pasturage that could be better used to grow grain for starving millions in poor countries. Additionally, claims are made that raising livestock requires more water than raising plant foods. But both these arguments are illogical. As for the pasturage argument, this ignores (23) .............. a large portion of the Earth's dry land is unsuited to cultivation. For instance, desert and mountainous areas are not suitable for cultivation, but are suitable for animal grazing. (24) .............., modern commercial farming methods prefer to raise animals in an enclosed space feeding them on grains and soybeans. Unfortunately, the bulk of commercial livestock is not range-fed but stall-fed. Stall-fed animals do not ingest grasses and shrubs (like they should), but are fed an unnatural array of grains and soybeans - which could be eaten by humans. The argument here, then, is not that eating meat depletes the Earth's resources, but that commercial farming methods do. Such methods subject livestock to deplorable living conditions (25) .............. infections, antibiotics, and synthetic hormones are common. These all lead to unhealthy animals and, by extension, to an unhealthy food (26) ...............
23. A) the fact that
B) a matter of
C) in the fact that
D) in fact
E) as a matter of fact
Cevap 23 : A
Soru 24 : Africans have at last lost patience with their governments. They are particularly angry about declining living standards, the breakdown of law and order. The government officials in particular, are full of complaints ......... Most of them are members of militant trade unions, through which they demonstrate and go on strike. So, chaos and continuous political instability can never be averted.
A) It is possible that market forces and world economic conditions can upset their high hopes for improvement
B) Among the demonstrators are people from the countryside who have been flooding into towns seeking a better life
C) Undoubtedly, Africans want multi-party democracy and are working hard to achieve it
D) Since most governments are short of cash, these officials are underpaid or paid late
E) Obviously, people tend to accept painful policies more readily from elected governments than from dictators
Cevap 24 : D
Çözüm 24 : Parçanın ilk cümlesinden de anlayabileceğimiz gibi parça Afrikalıların hükümetleriyle ilgili yakınmalarını sıralıyor.
Boşluktan önceki "government officials" ifadesini takip ederek doğru seçeneğin "D" olduğunu bulabiliriz.
Seçenekteki "These officials" ve boşluktan sonraki cümledeki "most of them (officials)"'ifadeleri bizim için en iyi ipuçlarıdır.
Soru 25 : Art is something which can be analyzed to give deeper insight as to the common values and beliefs shared by the members of a certain society. Regardless of the place of origin or the time period of a form of art, it will always be a reflection of the social structure in which its creator/s lived. However, the way the artist perceives the culture common to his time period is very relative. People pertaining to a higher social class had different values and ideologies than members of a lower class. This different view of life can be seen very clearly in individual forms of art such as painting and music. These specific forms of artistic expression required very little money, thus could be exercised by anyone including members of a lower class. Other forms of art such as architecture and sculpture required more money and in most cases wealthy patrons such as kings or queens. Architecture also required large numbers of workers which often made it hard to see any individual influence in the design, however showed the collective ideology of all of the people involved. The cost of labour and materials was also so great that very affluent members of society were needed to financially support the whole process. Sculpture was also an artistry that required great amounts of material and labour. This resulted in a more normative form of art which portrayed societal aspects in a way that was of interest to the financial backers.
The writer implies that ____.
A) monetary influence determines the value and validity of art partly
B) the cost of forms of art is changeable as to the class it belongs
C) common culture hasn’t influence on the forms of art
D) all the kind of art are similar in one respect
E) the all social trends of the time period are often portrayed in architecture
Cevap 25 : B
Soru 26 : For over thirty years, the Bermuda Triangle has been popularly known for disappearances of boats and aircraft. This imaginary triangle has its three points at Miami, Puerto Rico, and Bermuda. The 1945 disappearance of five military airplanes and a rescue plane was the primary focus of the Bermuda Triangle legend. In December of that year, Flight 19 set out on a training mission from Florida with a leader who wasn't feeling well, an underexperienced crew, a lack of navigation equipment, a limited supply of fuel, and rough seas below. Inexperienced pleasure boaters and aviators are common in the area of the triangle. They travel too far from the coast and often have an insufficient supply of fuel or knowledge of the swiftly moving Gulf Stream current. Overall, the mystery surrounding the Bermuda Triangle is not much of a mystery at all but has simply been the result of an overemphasis on the accidents which have occurred in the area.
. The Bermuda Triangle is ----.
A) impossible to understand it.
B) dangerous because million people died.
C) a legend based on experiments
D) located close to the area
E) a result of an exaggeration on the accidents
Cevap 26 : E
Soru 27 :
Cevap 27 :
Soru 28 : Lynn: I bought expired milk at the corner store today.
Wilma: ----
Lynn: It doesn’t seem worth the effort. I’ll just buy a new one.
Wilma: That store is notorious for selling food past its freshness date. I wouldn’t go there again.
A) Did you try to return it?
B) What was the expiration date?
C) I don’t like that corner store. They won’t let you return things.
D) I don’t shop there any more, either.
E) Why don’t you buy a new one?
Cevap 28 : A
Soru 29 : They may even ___ them of disloyalty, or make some spiteful remark about the friends' parents .
Cevap 29 : accuse
Soru 30 : The civil society organizations are planning to ____ the new constitution on the streets.
Cevap 30 : advocate
Soru 31 : In existentialism, it is argued that people are responsible for, and the ---- judge of, their actions.
A) expansive
B) sole
C) previous
D) irresistible
E) prevalent
Cevap 31 : B
Çözüm 31 : A) expansive: genişleyen, yayılan
B) sole: biricik, tek, yegane
C) previous: önceki
D) irresistible: dayanılmaz
E) prevalent: yaygın, genel
AÇIKLAMA: B
Bir sıfat sorusu. Yine bir isim öbeği oluşturacaktır.
the sole judge of their actions: kendi hareketlerinin tek hakimi (yargılayanı)
Soru 32 : If you ---- some free time after work, we ---- to celebrate your success this evening.
A) have / would meet
B) had / will meet
C) had had / will have met
D) should have / can meet
E) could have / met
Cevap 32 : D
Soru 33 : ---- stomach functions and other gastrointestinal activities are related to emotional states ---- throughout history.
A) That / has been known
B) While / have been known
C) These / were known
D) Whether / could be known
E) Such / had been known
Cevap 33 : A
Soru 34 : Coffee beans are second only to petroleum as the most traded commodity in the world.
A) Petroleum is the world's most traded commodity, and after that come coffee beans.
B) Petroleum and coffee beans share the honour of being the world's most traded commodities.
C) Coffee beans vie with petroleum as the world's most sought-after commodity.
D) Coffee beans are not the world's most sought-after commodity.
E) Petroleum has superseded coffee beans as the world's most traded commodity.
Cevap 34 : A
Çözüm 34 : İPUÇLARI: Coffee beans are second only: after that come coffee beans the most traded commodity in the world: the world's most traded commodity.
Soru 35 :
Cevap 35 :
Soru 36 : Despite his brilliance, Mozart had a difficult life, and he usually received no payment for his work.
A) Bir dahi olan Mozart, zor bir hayatı olmasına rağmen yaptığı işler için genellikle ödeme kabul etmezdi
B) Mozart, dehasına rağmen zor bir hayat yaşadı ve çalışmasının karşılığında genellikle para alamazdı.
C) Mozart, zor bir hayatı olmasına rağmen yaptığı işler için genellikle ödeme alamayan bir dahiydi.
D) Parlak bir müzisyen olan Mozart, yaptığı işler için genellikle ödeme yapılmadığı için zor bir hayat sürdü.
E) Dehası, yaptığı işler için genellikle ödeme kabul etmeyen Mozart’ın zor bir hayat sürmesini engelleyemedi.
Cevap 36 : B
Soru 37 : In his annual report, the accountant failed to ___ the position.
A) claim
B) charity
C) clarify
D) compete
E) charm
Cevap 37 : C
Soru 38 : (I) Obviously all imports haven’t put a great strain on the national budget. (II) Inflation has become one of the country’s most important economic problems. (III) This is because it generates instability in the economy. (IV) This in turn reduces capital investment which harms productivity and leads to a decline in living standards. (V) Thus there is a chain process which is hard to break.
A) I B- II C- III D- IV E- V
Cevap 38 : A
Çözüm 38 : Parça tümüyle ,ülkenin en önemli ekonomik problemlerinden biri olan enflasyon, onun ekonomide yarattığı istikrarsızlık ve ana para(sermaye) yatırımlarını nasıl azalttığıyla ilgilidir.Oysa ,ithalatların milli bütçeye çok büyük ağırlıklar yüklemediğinden bahseden 1.cümle parçaya uymamaktadır.Cevap A şıkkıdır.
Soru 39 : The nervous system functions to process input from sensory receptors, transfer and interpret impulses and ____.
A) especially important for the proper functioning of nerves
B) an intricate organ system found in the human body
C) run from receptor cells in the body to the spinal organs
D) controls a number of our behaviors through the flight or fight
E) to control the functions of body's muscles and organs
Cevap 39 : E
Soru 40 : ---- schools encourage children to read printed books more often, the library, in its traditional form,
will eventually disappear.
A) Whenever
B) Whereas
C) Since
D) However
E) Unless
Cevap 40 : E
Çözüm 40 : Okullar çocukları basılı kitapları daha sık okumaya teşvik etmedikçe, kütüphane, geleneksel biçimi içinde en sonunda ortadan kalkacaktır.
İkinci bölüm olumsuz anlam taşıdığı için burada bir şart bağlacı olan “unless” gerekecektir.
NOT:Yüklem daima olumlu ama anlam olumsuzdur.
Unless (except if) you stop eating, you'll be sick again.
You can't go in unless you've got a ticket.
Soru 41 : The ability of the cat to survive falls from high places that would kill humans or other animals is not due to multiple lives, but to several advantages they possess. Their small size and low body weight soften the impact as they make contact with the ground. The highly developed inner ears of cats equip them with a keen sense of balance, which is critical to their landing on their feet. Since cats land on all four paws, the impact from landing on the ground is absorbed by all four. Additionally, cats bend their legs when they land, which cushions the impact by spreading the impact. A cat stands a greater chance of survival if it falls from a higher place than from a lower place. Laws of physics explain why the survival rates vary. All falling bodies, regardless of their masses, accelerate by 22 miles per hour per second of their falls. The falling object, after traveling a certain distance through the air reaches a final speed, that is, “terminal velocity”, because the object’s friction with the air slows the fall. The smaller the object’s mass, and the greater its area, the more it will slow.
58. A cat falling from a lower place is more likely to die ----.
A) than a human falling from a higher place
B) unless it is crippled
C) as it cannot bend its legs at all
D) due to the spend of the fall that would slow in longer distances
E) if it has fallen from a high altitude before
Cevap 41 : D
Soru 42 :
Cevap 42 :
Çözüm 42 : ÇÖZÜMLEME: D
ÇEVİRİSİ: Deniz koruma bölgesi okyanusun bir bölümüdür biyolojik önem taşı-yan alanları korumak amacıyla bu koruma yasa ile sağlanır.
İPUCU:“is protected” yapısı edilgen olup “by” ilgeç yapısını gerektirir. “be+V3+by” yapısı. (YDS'de geçiş sıklığı:10-15)
Soru 43 : Warsaw is rich in museums and historic sights_____
A) where the streets are less crowded than most European cities
B) because the inhabitants of the city are proud of their history
C) although most of them were damaged during World War II
D) when it finally became the capital city of Poland in 1596
E) because Warsaw is visited by thousands of tourists every year
Cevap 43 : C
Çözüm 43 : “Varşova müzeler ve tarihi yerler açısından zengindir.” Bu yargının dayandırılacağı yan fikir ne olabilir ? C şıkkında verilen “2.Dünya Savaşında müzelerin çoğu zarar görmesine rağmen” ifadesi anlam olarak ana cümleciği tamamlamaktadır.
İPUÇLARI : “most of them= museums and historic sights”
“although” bağlacı ayrıca zıtlık verir.Bununla başlayan yan cümlecik olumsuz anlam taşıması,ana cümleciğin ise buna karşın olumlu olması “complex sentence” yapısını oluşturmaktadır.Ayrıca verilen “rich” ile “demaged” sıfatları bir zıtlık verdiği için bir ipucu sayılabilir.
Soru 44 : ____ because space is so massive and distances so far.
A) Astronomers use light years to measure distances in space
B) Astronomy is a field of science that studies the nature
C) Astronomers suspected another planet beyond Uranus
D) Astronomers study light waves collected from outer space
E) Astronomers earned a median salary of $96460 in 2014
Cevap 44 : A
Soru 45 : He says that if any such evidence existed, —.
A) they will conduct the experiment under controlled conditions
B) he is most probably wrong in interpreting the evidence
C) it would have been published in a scientific journal
D) there can be some counterclaims regarding the sample
E) you might as well follow the advice from the
researchers
Cevap 45 : C
Çözüm 45 : Öncelikle cümle yapısına baktığımızda “mixed type” bir koşul cümlesi olduğunu görüyoruz.
“existed + would have been published” bunu bize veriyor.Ayrıca özne uyumundan yola çıkarsak” such evidence + it”ipucunu da buluruz.
Soru 46 : She ____ the throne in 1891 upon the death of her brother, King Kalakaua.
Cevap 46 : ascended
Soru 47 : World War II ---- in Asia and in the Pacific until Hiroshima and Nagasaki ----.
A) was continued / had bombed
B) would continue / were bombing
C) had continued / had been bombed
D) continued / were bombed
E) had been continued / would be bombed
Cevap 47 : D
Soru 48 : When air pollution, including acid rain, is combined with other environmental stresses, such as low winter temperatures, prolonged droughts, insects, and bacterial, fungal, and viral diseases, it can cause plants to decline and die. More than half of the red spruce trees in the mountains of the northern United States have died since the mid-1970s. Other tree species, such as sugar maples, for example, are also dying. Many still-living trees are exhibiting symptoms of forest decline, characterized by a gradual deterioration and often eventual death. The general symptoms of forest decline are reduced vigour and growth, but some plants exhibit specific symptoms, such as yellowing of needles in conifers. Air pollutants may or may not be the primary stress that results in forest decline, but the presence of air pollution lowers plant resistance to other stress factors. When one or more stresses weaken a tree, then an additional stress may be enough to cause death.
Cevap 48 : E
Çözüm 48 : Yine dolaylı bir çıkarım sorusu verilmiş. İstenen “the death of the red spruce =kızıl ladin ağaçlarının ölümü”dür. Parçadan scanning yöntemiyle bununla ilgili bölümü arayıp bulmalıyız. Bu nedenle şu cümlelere göz atmak gerekir. “When one or more stresses weaken a tree, then an additional stress may be enough to cause death. =bir yada iki stres bir ağacı zayıflatır,bir sonraki ilave stres ise ağacın ölmesine yol açabilir.” sözü E şıkkındaki “this has resulted from the joint effects of air pollution and environmental factors ” ifadesine götürür,bu da parçadaki verilen anlamla örtüşmektedir.
Soru 49 : The basic economic features of the EEC treaty ___, and in 1968 all tariffs between member states ___.
A) would have been implemented / eliminated
B) are implemented / will be eliminated
C) were implemented / were eliminated
D) had been implemented / was being eliminated
E) implemented / eliminating
Cevap 49 : C
Çözüm 49 : were implemented / were eliminated z.uyumu
Soru 50 : When the rage for orchids hit Europe in the nineteenth century, collectors immediately realized that greenhouses were needed to provide (17) ------ growing conditions. (18) ------ greenhouses were a luxury (19) ------ the very wealthy. But before long, greenhouses (20) ------ mass-produced, (21) ------ made them more affordable for orchid lovers of modest means.
20. A) have been
B) were being
C) had been
D) would have been
E) will be
Cevap 50 : C
Çözüm 50 : Bir zaman uyumu sorusu: parçanın genelinde kullanılan tense bize ipucu verecektir. Boşluğun bırakıldığı cümlede “But before long, greenhouses --mass-produced,” Buradaki “before long>çok geçmeden” ifadesi daha önce yapılmış bir eyleme işaret ettiğinden “Past Perfect” yapı buraya uygundur. Bu nedenle en uygun seçenek “C” şıkkıdır.