BÀI 15

Mark the letter A, Β, C or D to indicate the word whose underlined part differs from the other
three in pronunciation in each of the following questions.
Question 1. A. removed Β. approved C. reminded D. relieved

Câu 1: Đáp án C
A. removed /rɪˈmuːv/ B. approved /əˈpruːv/
C. reminded /rɪˈmʌɪnd/ D. relieved /rɪˈliːvd/
Question 2. A. fragile Β. bargain C. general D. luggage

Câu 2: Đáp án B
A. fragile /ˈfradʒʌɪl/ B. bargain /ˈbɑːɡɪn/
C. general /ˈdʒɛn(ə)r(ə)l/ D. luggage /ˈlʌɡɪdʒ/
Mark the letter Α, Β, C or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.
Question 3. A. marvelous Β. notorious C. credulous D. numerous

Câu 3: Đáp án B
A. marvelous /ˈmɑːv(ə)ləs/ B. notorious /nə(ʊ)ˈtɔːrɪəs/
C. credulous /ˈkrɛdjʊləs/ D. numerous /ˈnjuːm(ə)rəs/
Question 4. A. majority Β. obstinacy C. apology D. equality

Câu 4: Đáp án B
A. majority /məˈdʒɒrɪti/ B. obstinacy /ˈɒbstɪnəsi/
C. apology /əˈpɒlədʒi/ D. equality /ɪˈkwɒlɪti/
Mark the letter A, Β, C or D to indicate the word(s) SIMILAR in meaning to the underlined word(s) in each of the following questions.
Question 5. All at once Millie got up and left the house without any explanation.
A. as usual Β. as first C. suddenly D. not frequent

Câu 5: Đáp án C
all at once = suddenly: đột ngột
as usual = usually; at first: lúc đầu; not frequent: không thường xuyên
Question 6. Considering they are over 70 years old, you must admit they are in good shape.
A. fit Β. wealthy C. clever D. slow

Câu 6: Đáp án A
in good shape = fit: cân đối
wealthy: giàu có; clever: thông minh, khéo léo; slow: chậm chạp
Mark the letter A, Β, C or D to Indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
Question 7. “Don’t be such a pessimist I'm sure you'll soon get over it. Cheer up!”
A. activist Β. feminist C. optimist D. hobbyist

Câu 7: Đáp án C
pessimist: người bi quan >< optimist: người lạc quan
activist: nhà hoạt động xã hội; feminist: người bênh vực bình quyền cho phụ nữ
Question 8. It is obligatory for all students to take the entrance examination in order to attend the university.
A. forced Β. impelling C. required D. optional

Câu 8: Đáp án D
obligatory = impelling: bắt buộc >< optional: tùy chọn
forced: ép buộc; required: yêu cầu, đòi hỏi
Mark the letter A, Β, C or D to indicate the underlined part that needs correction in each of the following questions.
Question 9. Ancient people made a clay pottery because they needed it for their survival.
A. a clay Β. because C. it D. their survival

Câu 9: Đáp án A
a clay → clay, clay pottery: nghề làm gốm
Giải thích: Khi nói đến một nghề nào đó, không cần có mạo từ, ví dụ: carpentry: nghề thợ mộc,
engineering: nghề kỹ sư, farming: nghề nông...
Question 10. If they took their language lesson seriously, they would be able to communicate with the locals now.
A. took Β. seriously C. would be D. with the locals

Câu 10: Đáp án A
took → had taken
Giải thích: đây là câu điều kiện loại hỗn hợp 3 và 2, vì vậy mệnh đề điều kiện dùng thì quá khứ hoàn thành, mệnh đề chính dùng would + V
Question 11. Grover Cleveland was the only American president served two nonconsecutive terms.
A. the only Β. served C. nonconsecutive D. terms

Câu 11: Đáp án B
served → to serve

Giải thích: cấu trúc mệnh đề quan hệ rút gọn ở thể chủ động đối với những danh từ có “the
only/the next/ the first...”.
Mark the letter A, Β, C or D to indicate the correct answer to each of the following questions.
Question 12. My husband and I both go out to work so we share the _______.
A. happiness Β. household chores
C. responsibility D. employment

Câu 12: Đáp án B
share household chores (chia sẻ việc nhà)
happiness: hạnh phúc; responsibility: trách nhiệm; employment: công việc
Question 13. When our teacher saw what we had done he was absolutely _______.
A. angry Β. upset C. furious D. annoyed

Câu 13: Đáp án C
absolutely furious = very angry: rất giận dữ, bực mình

Question 14. I enjoy walking to school, but on rainy days I _______ to going by bus.
A. would rather Β. commit C. prefer D. resort

Câu 14: Đáp án D
resort to + V_ing (nhờ đến, dùng đến) would rather + V (thích làm/ điều gì đó hơn...)
commit to (dính dáng đến) prefer + V_ing (thích làm/điều gì đó hơn...)
Question 15. The traffic lights _______ green and I pulled away.
A. became Β. turned C. got D. changed

Câu 15: Đáp án B
turn green = go green (chuyển sang đèn xanh)
Question 16. You should have _______ those shares when they were cheap.
A. taken out Β. sold off C. bought up D. taken over

Câu 16: Đáp án C
buy up: mua hết
take out: đưa ra; sell off: bán hết; take over: tiếp quản
Question 17. I'll _______ you _______ to our Research department. Please hold on.
A. put - away Β. put - out C. put - through D. put – up

Câu 17: Đáp án C
Put somebody through: nối/chuyển máy (điện thoại)
Put something away: cất đi
Put something out: dập lửa
Put somebody up: cho ai ở trọ
Question 18. The telescope will photograph distant galaxies, _______ attempt to understand their past.
A. in Β. for C. on D. with

Câu 18: Đáp án A
In attempt to - in an effort to: cố gắng, nỗ lực làm gì
Question 19. He _______ the umbrella in his right hand, trying to keep his balance.
A. hold Β. held
C. has been holding D. has held

Câu 19: Đáp án B
Thời quá khứ đơn giản trong cấu trúc diễn tả hai hành động xảy ra cùng 1 lúc: S + V(PI) + O,
V_ing vừa...vừa….)
Question 20. They want to get young people to open a bank _______.
A. count Β. counter C. account D. deposit

Câu 20: Đáp án C
Open/close a bank account: mở/đóng tài khoản ngân hàng
Count: đếm
Counter: quay thanh toán
Deposit: tiền đặt cọc
C
Question 21. Despite the plan's emphasis on agricultural _______, the industrial sector received a larger share of state investment.
A. developing Β. developer C. development D. developed

Câu 21: Đáp án C
Agricultural development (n): sự phát triển về nông nghiệp
Question 22. They still remain the need for an integrated system of subsidies which will _______ farmers to look after their upland environment and producing food.
A. enable Β. adopt C. consume D. discourage

Câu 22: Đáp án A
Enable somebody to do something: làm cho ai có thể/có khả năng làm gì
Adopt something: dùng, sử dụng
Consume: tiêu dùng, tiêu thụ

Discourage somebody from doing something: cản trở ai làm gì
Question 23. Although she loves movies, she doesn’t _______ enjoy live theatre.
A. partially Β. regularly C. finally D. particularly

Câu 23: Đáp án D
Particularly: một cách đặc biệt
Partially: một phần, không hoàn chỉnh
Regularly: thường xuyên
Finally: cuối cùng thì
Read the following passage and mark the letter A, Β, C or D to indicate the correct word or phrase that best fits each of the numbered blanks.
POST IN HISTORY
Although it may come as a surprise to many people, postal services have existed in some parts of the world for thousands of years. There is ample evidence that a postal services existed among the Assyrians and Babylonians. In China a regular postal service was established in the seventh century BC, and over the centuries attained such a high level of efficiency that some 2000 years after its (24) _______ it won the admiration of travelers like Marco Polo. Efficient and highly developed postal services were also established in the Persia and Roman Empires. In ancient times, these services were mainly confined to the use of representative of the state; private citizens made use of slaves, merchants and the (25) _______ to send their messages and documents. In Medieval Europe, postal services were organized by emperors and by the papacy, (26) _______ private citizens continued to entrust their correspondence to various travelers. Later around the 13^th century, universities and towns came to have the own messengers. However, it was not until the 14th century when merchants, the private citizens who had the greatest need for a speedy and regular exchange of correspondence, began to set (27) _______ regular courier services. The needs of business (28) _______ to the development of the postal services as we know it today.
Question 24. A. introduction Β. institution C. application D. occurrence

Câu 24: Đáp án B
institution (sự thành lập)
Introduction (sự giới thiệu), application (sự áp dụng), occurrence (sự xuất hiện)
Question 25. A. such Β. likely C. like D. same

Câu 25: Đáp án C
the like (những người giống thế
Question 26. A. when Β. and C. until D. while

Câu 26: Đáp án D
while nằm giữa 2 mệnh đề hoặc đứng đầu câu để thể hiện sự đối lập
Question 27. A. up Β. out C. off D. in

Câu 27: Đáp án B
set out (sắp đặt, trưng bày)
set in (bắt đầu), set up (thành lập), set off (khởi hành, lên đường)
Question 28. A. resulted Β. came C. brought D. led

Câu 28: Đáp án D
lead to = cause = result in (dẫn đến, gây ra) >< result from
Read the following passage and mark the letter A, Β, C or D to indicate the correct answer to each of the questions.
In addition to their military role, the forts of the nineteenth century provided numerous other benefits for the American West. The establishment of these posts opened new roads and provided for the protection of daring adventurers and expeditions as well as established settlers. Forts also served as bases where enterprising entrepreneurs could bring commerce to the West, providing
supplies and refreshments to soldiers as well as to pioneers. Posts like Fort Laramie provided supplies for wagon trains traveling the natural highways toward new frontiers. Some posts became stations for the pony express; still others, such as Fort Davis, were stagecoach stops for weary travelers. All of these functions, of course, suggest that the contributions of the forts to the civilization and development of the West extended beyond patrol duty. Through the establishment of military posts, yet other contributions were made to the
development of western culture. Many posts maintained libraries or reading rooms, and some – for example, Fort Davis - had schools. Post chapels provided a setting for religious services and weddings. Throughout the wilderness, post bands provided entertainment and boosted morale. During the last part of the nineteenth century, to reduce expenses, gardening was encouraged at the
forts, thus making experimental agriculture another activity of the military. The military stationed at the various forts also played a role in civilian life by assisting in maintaining order, and civilian officials often called on the army for protection.
Certainly, among other significant contributions the army made to the improvement of the conditions of life was the investigation of the relationships among health, climate, and architecture. From the earliest colonial times throughout the nineteenth century, disease ranked as the foremost
problem in defense. It slowed construction of forts and inhibited their military functions. Official documents from many regions contained innumerable reports of sickness that virtually incapacitated entire garrisons. In response to the problems, detailed observations of architecture and climate and their relationships to the frequency of the occurrence of various diseases were recorded at various posts across the nation by military surgeons.
Question 29. Which of the following statements best expresses the main idea of the passage?
A. By the nineteenth century, forts were no longer used by the military.
Β. Surgeons at forts could not prevent outbreaks of disease.
C. Forts were important to the development of the American West.
D. Life in nineteenth-century forts was very rough.

Câu 29: Đáp án C
Đây là dạng câu tổng quát/tìm ý chính trong bài.
Ý chính của bài là tầm quan trọng của pháo đài quân sự đối với sự phát triển của miền tây nước
Mỹ.
Question 30. The word “daring” in paragraph 1 is closest in meaning to _______.
A. lost Β. bold C. lively D. foolish

Câu 30: Đáp án B
Đây là dạng câu hỏi về từ vựng trong ngữ cảnh.
Theo ngữ cảnh của bài, daring = bold (dũng cảm, gan dạ)
lost (bị thất lạc), lively (sống động), foolish (ngu ngốc)
Question 31. The word “others” in paragraph 1 refers to _______.
A. posts Β. wagon trains C. frontiers D. highways

Câu 31: Đáp án A
Đây là câu hỏi quy chiếu từ vựng.
Theo thông tin trong câu “Some posts became stations for the pony express; still others, such as Fort Davis, were stagecoach stops for weary travelers.” (Một số pháo đài đã trở thành nhà ga cho dịch vụ chuyển phát thư bằng xe ngựa, nhưng những pháo đài khác, ví dụ như Fort Davis, là những trạm dừng chân của xe ngựa tuyến dành cho các lữ khách đã kiệt sức), others quy chiếu cho từ posts
Question 32. Which of the following is the most likely inference about the decision to promote gardening at forts?
A. It was expensive to import produce from far away.
Β. Food brought in from outside was often spoiled.
C. Gardening was a way to occupy otherwise idle soldiers.
D. The soil near the forts was very fertile.

Câu 32: Đáp án A
Đây là dạng câu hỏi suy luận.

Theo thông tin xuất hiện ở cuối đoạn 2 “... to reduce expenses, gardening was encouraged at the forts, thus making experimental agriculture another activity of the military.” (... để giảm chi tiêu, công việc làm vườn được khuyến khích tại các pháo đài, do đó biến hoạt động nông nghiệp thực nghiệm thành một hoạt động khác nữa cho quân đội), ta có thể suy ra rằng quyết định phát triển trồng vườn tại các pháo đài là do nhập khẩu hàng nông sản từ xa về là đắt đỏ.
Question 33. According to the passage, which of the following posed the biggest obstacle to the development of military forts?
A. Insufficient shelter Β. Shortage of materials
C. Attacks by wild animals D. Illness

Câu 33: Đáp án D
Đây là dạng câu hỏi về thông tin chi tiết có trong bài.
Theo thông tin xuất hiện ở giữa đoạn 3 “From the earliest colonial times throughout the nineteenth century, disease ranked as the foremost problem in defense.” (Từ thời kỳ thuộc địa đến suốt thế kỷ 19, bệnh tật được xếp là vấn đề hàng đầu trong an ninh quốc phòng), trở ngại lớn nhất đối với sự phát triển của các pháo đài quân sự là illness (bệnh tật)
Question 34. The word “inhibited” in paragraph 3 is closest in meaning to _______.
A. involved Β. exploited C. united D. hindered

Câu 34: Đáp án D
Đây là dạng câu hỏi về từ vựng trong ngữ cảnh.
Theo ngữ cảnh của bài, inhibited = hindered (cản trở)
Question 35. How did the military assist in the investigation of health problems?
A. By registering annual birth and death rates
Β. By experiments with different building materials
C. By maintaining records of diseases and potential causes
D. By monitoring the soldiers' diets

Câu 35: Đáp án C
Đây là dạng câu hỏi về thông tin chi tiết có trong bài.
Dịch câu hỏi: Quân đội trợ giúp cho việc điều tra về vấn đề sức khỏe bằng cách nào?
Theo thông tin xuất hiện đoạn 3 “Official documents from many regions contained innumerable reports of sickness that virtually incapacitated entire garrisons .... the frequency of the occurrence of various diseases were recorded at various posts across the nation by military surgeons.” (tài liệu chính thức từ nhiều vùng có lưu vô số các báo cáo về bệnh tật ảnh hưởng nguy hại đến toàn bộ binh lính … tần suất xuất hiện nhiều cách bệnh khác nhau được các bác sĩ quân y ghi lại tại các pháo đài khác nhau trên khắp cả nước), bằng việc lưu giữ hồ sơ về bệnh tật và các nguyên nhân tiềm tàng là cách quân đội hỗ trợ cho công tác điều tra vấn đề sức khỏe.
Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions.
Birds that feed in flocks commonly retire together into roosts. The reasons for roosting communally are not always obvious, but there are some likely benefits. In winter especially, it is important for birds to keep warm at night and conserve precious food reserves. One way to do this is to find a sheltered roost. Solitary roosters shelter in dense vegetation or enter a cavity – horned larks dig holes in the ground and ptarmigan burrow into snow banks - but the effect of sheltering is magnified by several birds huddling together in the roosts, as wrens, swifts, brown creepers, bluebirds, and anis do. Body contact reduces the surface area exposed to the cold air, so the birds keep each other warm. Two kinglets huddling together were found to reduce their heat losses by a quarter, and three together saved a third of their heat. The second possible benefit of communal roosts is that they act as “information centers”. During the day, parties of birds will have spread out to forage over a very large area. When they return in the evening some will have fed well, but others may have found little to eat. Some investigators have observed that when the birds set out again next morning, those birds that did not feed well on the previous day appear to follow those that did. The behavior of common and lesser kestrels may illustrate different feeding behaviors of similar birds with different roosting habits. The common kestrel hunts vertebrate animals in a small, familiar hunting ground, whereas the very similar lesser kestrel feeds on insects over a large area. The common kestrel roosts and hunts alone, but the lesser kestrel roosts and hunts in flocks, possibly so one bird can learn from others where to find insect swarms. Finally, there is safety in numbers at communal roosts since there will always be a few birds awake at any given moment to give the alarm. But this increased protection is partially counteracted by the fact that mass roosts attract predators and are especially vulnerable if they are on the ground. Even those in trees can be attacked by birds of prey. The birds on the edge are at greatest risk since predators find it easier to catch small birds perching at the margins of the roost.
Question 36. What does the passage mainly discuss?
A. How birds find and store food Β. How birds maintain body heat in the winter
C. Why birds need to establish territory D. Why some species of birds nest together

Câu 36: Đáp án D
Đây là dạng câu hỏi tổng quát/hỏi về ý chính của bài đọc.
Ý chính của bài nói về lý do vì sao một số loài chim lại xây tổ cùng nhau
Question 37. The word “conserve” in paragraph 1 is closest in meaning to _______?
A. retain Β. watch
C. locate D. share

Câu 37: Đáp án A
Đây là dạng câu hỏi về từ vựng trong ngữ cảnh.
Theo ngữ cảnh của bài, conserve = retain (giữ lại, bảo quản)
watch (theo dõi), locate (định vị), share (chia sẻ)
Question 38. Ptarmigan keep warm in the winter by _______.
A. huddling together on the ground with other birds
Β. building nests in trees
C. burrowing into dense patches of vegetation
D. digging tunnels into the snow

Câu 38: Đáp án D
Đây là dạng câu hỏi về thông tin chi tiết có trong bài.
Thông tin xuất hiện ở đoạn 1 “In winter especially, it is important for birds to keep warm at night and conserve precious food reserves. One way to do this is to find a sheltered roost ….. ptarmigan burrow into snow banks” Đặc biệt là vào mùa đông, giữ ấm và bảo quản nguồn thức ăn quý là rất quan trọng. Một cách để làm việc này là phải tìm một nơi ẩn náu … gà gô trắng xám thường đào những đống tuyết.
Question 39. The word “magnified” in paragraph 1 is closest in meaning to _______.
A. caused Β. modified C. intensified D. combined

Câu 39: Đáp án C
Đây là dạng câu hỏi về từ vựng trong ngữ cảnh.
Theo ngữ cảnh của bài, manified = intensified (tăng cường, làm mạnh thêm)
Modified (sửa đổi), combined (kết hợp)

Question 40. The author mentions “kinglets” in paragraph 1 as an example of birds that _______.
A. protect themselves by nesting in holes
Β. nest with other species of birds
C. nest together for warmth
D. usually feed and nest in pairs

Câu 40: Đáp án C
Đây là dạng câu hỏi về thông tin chi tiết có trong bài,
Thông tin xuất hiện cuối đoạn 1 “Two kinglets huddling together were found to reduce their heat losses by a quarter, and three together saved a third of their heat.” Tác giả nhắc đến chim tước mào vàng như một ví dụ về các loài chim xây tổ cùng nhau để giữ ấm

Question 41. Which of the following is NOT mentioned in the passage as an advantage derived by birds that huddle together while sleeping?
A. Some members of the flock warn others of impending dangers.
Β. Staying together provides a greater amount of heat for the whole flock.
C. Some birds in the flock function as information centers for others who are looking for food.
D. Several members of the flock care for the young.
Câu 41: Đáp án D
Đây là dạng câu hỏi về thông tin đối lập/thông tin không có trong bài.
A. Some members of the flock warn others of impending dangers. (Một số con trong đàn cảnh
báo với các con khác về nguy hiểm đang đến.) → đúng vì thông tin nằm ở đoạn 3 “there is safety in numbers at communal roosts since there will always be a few birds awake at any given moment to give the alarm.
Β. Staying together provides a greater amount of heat for the whole flock, (đậu cùng nhau đem lại nhiều hơi ấm hơn cho cả đàn) → đúng vì thông tin xuất hiện ở đoạn 1 “Body contact reduces the surface area exposed to the cold air, so the birds keep each other warm.” C. Some birds in the flock function as information centers for others who are looking for food. (Một số con trong đàn làm nhiệm vụ báo tin cho những con khác đang đi kiếm mồi) → đúng vì thông tin nằm ở đoạn 2 “The second possible benefit of communal roosts is that they act as “information centers.”
D. Several members of the flock care for the young. (một số con trong đàn chăm sóc cho các con non) → thông tin này không được nhắc đến trong bài

Question 42. Which of the following is a disadvantage of communal roosts that is mentioned in the passage?
A. Diseases easily spread among the birds.
Β. Groups are more attractive to predators than individual birds are.
C. Food supplies are quickly depleted.
D. Some birds in the group will attack the others.

Câu 42: Đáp án B
Đây là dạng câu hỏi về thông tin chi tiết có trong bài.
Một bất lợi của việc đậu cùng nhau theo đàn lớn là chúng dễ thu hút sự chú ý của thú săn mồi hơn là các con chim đậu đơn lẻ. Thông tin xuất hiện ở đoạn 3 “But this increased protection is partially counteracted by the fact that mass roosts attract predators and are especially vulnerable if they are on the ground

Question 43. The word “they” in paragraph 3 refers to _______.
A. a few birds Β. mass roosts C. predators D. trees

Câu 43: Đáp án Β
Đây là dạng câu hỏi quy chiếu từ vựng.
Đai từ “they” quy chiếu đến “mass roosts” (chim đậu theo đàn)
Mark the letter A, Β, C or D to indicate the correct response to each of the following exchanges.
Question 44. - Well, it was nice talking to you, but I have to go.
- _______.
A. Yes, I enjoyed talking to you too. Β. OK, see you.
C. Pleased to meet you, too. D. Nice to meet you. I'm Hoa.

Câu 44: Đáp án B
OK, see you là cách chào tạm biệt, ngoài ra có Bye, see you later/see you soon.
Dịch: - Ồ, thật vui được nói chuyện với cậu nhưng tớ phải đi rồi. - Được rồi, chào cậu nhé!

Question 45. - Do you feel like going out for a drink this evening?
- _______.
A. That would be great.
Β. Thank you very much for your kind invitation.
C. Yes. I like very much.
D. No, I don't. I am busy.

Câu 45: Đáp án A
Cấu trúc câu thể hiện lời mời: Do you feel like V_ing…?/Would you like + to V?/ Are you free to V...? có thể được đáp lại bằng: Yes, I’d love to/ Thanks, I'd love to/ I’d like to / That sounds great/sounds like fun/ That would be great/ wonderful.
Dịch: - Em có muốn đi uống gì tối nay không? - Ý hay đấy!

Mark the letter A, Β, C, or D to indicate the sentence that is closest in meaning to each of the following questions.
Question 46. She’s bound to see Jim at the meeting.
A. She's obliged to see Harry at the meeting.
Β. She's on her way to see Harry at the meeting.
C. It's certain that she will see Harry at the meeting.
D. She's too busy to see Harry at the meeting.

Câu 46: Đáp án C
Tạm dịch câu gốc: Cô ấy chắc chắn sẽ gặp Jim tại cuộc họp.
to be bound to V = it is certain that S will V (chắc chắn sẽ...)

Question 47. The burglar was caught red-handed by the police when he broke into the flat.
A. The police caught the burglar breaking into the flat.
Β. The police caught the burglar to break into the flat.

C. The police caught the burglar when breaking into the flat.
D. When the burglar bad broken into the flat, the police caught him at once.

Câu 47: Đáp án A
Tạm dịch câu gốc: Kẻ trộm bị cảnh sát bắt quả tang khi đang đột nhập vào căn hộ.
to be caught red-handed = to catch somebody + V_ing (bắt quả tang đang đó đang làm gì)
Question 48. I won't sell the painting, no matter how much you offer me.
A. Whenever you offer me to buy the painting, I won’t sell it.
Β. How many money you offer me, I won’t sell the painting.
C. Whatever price you offer me, I won’t sell the painting.
D. In spite of your offering me how much money, but I won’t sell the painting.

Câu 48: Đáp án C
Tạm dịch câu gốc: Tôi sẽ không bán bức tranh cho dù anh trả bao nhiêu tiền đi chăng nữa. No matter how much you offer me = whatever price you offer me = however much you offer me (dù cho anh trả bao nhiêu đi chăng nữa)
Mark the letter A, Β, C or D to indicate the sentence that best combines each pair of sentences in the following questions.
Question 49. We spend about one-third of our lives sleeping. We know relatively little about sleep.
A. We know relatively little about sleep; as a result, we spend about one-third of our lives sleeping.
Β. We shall know more about sleep if we spend more than one-third of our lives sleeping.
C. Despite spending about one-third of our lives sleeping, we know relatively little about sleep.
D. We spend about one-third of our lives sleeping so that we know relatively little about sleep.

Câu 49: Đáp án C
Tạm dịch câu gốc: Chúng ta dành khoảng 1/3 cuộc đời để ngủ. Chúng ta hầu như không biết gì về giấc ngủ cả. Hai câu đơn này thể hiện mối quan hệ đối lập nên được kết hợp bằng cấu trúc Despite + V_ing.
Question 50. He didn't take his father’s advice. That's why he is out of work.
A. If he had taken his father's advice, he would not have been out of work.
Β. If he took his father's advice, he would not be out of work.
C. If he had taken his father’s advice, he would not be out of work.
D. If he takes his father's advice, he will not be out of work.