II
20. D
21. B
22. A
23. B
24. B
25. C
III
26. He is staying in a small hotel near a shopping area.
27. Because there's always a lot of traffic, day and night.
28. The streets are narrower but they are cleaner and there isn't so much traffic.
29. No, there is not.
IV
30. In summer, Vinh is hotter than DaNang.
31. Apples are more expensives than oranges.
32. Tokyo is the largest city of the three cities.
V
33. Is ⇒ Does.
34. Have ⇒ Has
35. Are ⇒ Is.
36. His ⇒ Her.
37. We ⇒ Our.
38. Than ⇒ To
39. Some ⇒ Any.
40. I ⇒ Me.
cho mình xin ctlhn nhé