1.B 2.C 3.B 4.D 5.C
6.A 7.A 8.C 9.C 10.B
11.D 12.B 13.C 14.C 15.D
16. are taken (câu này mình chưa chắc lắm)
17. to have
18. Does she sometimes buys......
19. did not know
20. are riding
21. haven't seen
22. does not try
23. had been cleaned
24. opening
26. No, he isn't. (He's a university student.)
27. When he was eight.
28. From 8.00 to 4.00 every day.
29. Because they don't understand Davis.
30. Other children.
31. They have lived in this village for 2 years.
32. Swimming in a deep lake is dangerous (for him).
33. It takes Nga 4 hours a day to practice English with her friends.
34. I prefer driving car to riding bike.
35. Why don't you watch Television?
36. Students must avoid wasting so much time wandering the Websites.
37. She is too young to get married.
38. He used to walk to school in the morning when he was a student.
39. If I were you, I wouldn't buy that bicycle.
40. It's difficult to prevent people from parking here.