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20. How long have you used the car?
21. I have never seen such a high building before.
22. Linh prefers the country life to the city life.
23. Mr.Ba's car is the biggest car in the company.
24. We haven't met Uncle Tam for three years.
25. Are you going to fly to Ho Chi Minh next Monday?
26. We have lived here since 1995.
27. We don't have to drive so fast.
28. Quan is the most intelligent student in my class.
29. The coffee wasn't strong enough to keep us awake.
30. Huong last wrote to her parents two months ago.
31. When did he buy the computer?
32. It's the first time I have talked to the headmaster.
33. We haven't gone to London for two years.
34. Viet used to play badminton well.
35. This is the highest building in the city.
36. My house is the same size as Nam's house.
37. I haven't seen Nhung for nearly two years.
38. How long did it take you to fly from Hanoi to Bangkok?
39. My ucle prefers gardening to fishing.
40. My mother cooks better than my sister does.
41. That shirt is more expensive than this shirt.