27. B <more difficult : khó hơn >< easier: dễ hơn>
28. D <ancient: cổ >< modern: hiện đại>
29. C <enjoyable: thú vị ≈ exciting>
30. D <drawbacks: nhược điểm ≈ disadvantages>
31. A. A new house will be built in the area by them. <S + will be + Ved/ P2 + (by)>
32. B. In spite of his broken leg, he managed to get out of the car. <In spite of/ Despite + N/ V-ing, S + V>
33. B. If you do not work hard, you will not pass the exam.
34. A. Nick said that he came from a small town in England. <câu tường thuật: htd → qkd>
35. C. My dad used to work in a factory. <used to + V>
36. B. A lot of articles have been written for the CNN News by Mr. Peter.
37. D. If the soil were not badly polluted, trees and grasses could grow here.
38. D. Tom asked Mark what time he had come home the previous night
39. A
40. B