24. Mike drives more carefully than his brother does.

25. If she hadn't worked hard, she wouldn't have got high wages.

26. If you don't phone me tonight, you won't get any information.

27. Tom used to cry a lot when he was a child.

28. The problem is too difficult for him to solve.

It is such a difficult problem that he can't solve it.

The problem is so difficult that he can't solve it.

29. Why don't we go to the seaside this summer?

How about going to the seaside this summer?

I suggest going to the seaside this summer.

30. Our team was said to have won the gold medal by chance.

31. I wish I hadn't lent him much money.

32. If Mary hadn't drunk too much wine, she wouldn't have felt sick.

33. Unless you put on your coat, you will catch a cold.

34. He couldn't afford to buy a car, and neither could she.

He couldn't afford to buy a car, and she couldn't either.

35. In spite of the bad weather, we enjoyed our trip.

35. Because he was sleepy, he went to bed early.

37. Because of being very tired, I  made a mistake.

38. Even though the cars are cheap, they last a long time

39. Although it was noisy, the children slept well.

40. Because he was tired, he didn't walk to the station.

I.

1. B (Phát âm là /o/, còn lại phát âm là /ə/)

2. B (Phát âm là /h/, còn lại là h câm)

II. 

3. D (Trọng âm âm thứ nhất, còn lại âm thứ hai)

4. C (trọng âm âm thứ nhất, còn lại âm thứ hai)

III>.

5. alike => like (alike là tính từ nghĩa là "giống", like ở đây đóng vai trò là liên từ, có nghĩa là "giống với")

6. will have had => have had (Mệnh đề trạng ngữ chỉ thời gian - mệnh đề sau when/by the time/... trong câu có ngữ cảnh tương lai, động  từ chia ở dạng hiện tại đơn/ hiện tại hoàn thành)

7. never => ever (Anh ấy là tác giả nổi tiếng nhất mà tôi tường biết)

8. A (cụm từ chỉ mục đích "in order to V_infinitive)