38. Wind power is an ancient source of energy 　　　　we may return in the near future.

　　 A. on which　　　　 B. by which　　　　　 C. to which　　　　　 D. from which

37. When changing lanes, a driver should use his turning signal to let other drivers know　　　 .

　　 A. he is entering which lane　　　　　　 B. which lane he is entering

　　 C. is he entering which lane　　　　　　 D. which lane is he entering

36. One reason for her preference for city life is 　　　　she can have easy access to places like shops and restaurants.

　　 A. that　　　　　 B. how　 　　　　　　C. what　　　　　　 D. why

35.　　　 　the city center, we saw a stone statue of about 10 meters in height.

　　 A. Approaching　　 B. Approached　　　　 C. To approach　　　 D. To be approached

34.　　　 　you may have, you should gather your courage to face the challenge.

　　 A. However a serious problem　　　　　　 B. What a serious problem

　　 C. However serious a problem　　　　　　 D. What serious a problem

33. Lucy has a great sense of humor and always keeps her colleagues　　　 with her stories.

　 A. amused　　　　 B. amusing　　　　 C. to amuse　　　　　 D. to be amused

32. I had great difficulty　　　 the suitable food on the menu in that restaurant.

　 A. find　　 　　　　B. found　　　　　 C. to find　　　　　　 D. finding

31. The church tower which　　　 will be open to tourists soon. The work is almost finished.

　 A. has restored　　 B. has been restored　　 C. is restoring　　　　 D. is being restored

30. In ancient times, people rarely travelled long distances and most farmers only travelled　　　 　　　　the local market.

　 A. longer than　　　 B. more than　　　　　 C. as much as　　　　 D. as far as

29. ---Sorry, Professor Smith. I didn't finish the assignment yesterday.

---Oh, you　　　 have done it as yesterday was the deadline.

A. must　　　　　　 B. mustn't　　　　　 C. should　　　　　　 D. shouldn't