31. We have no idea at all ______the economic crisis will end.

　　　 A. when　　　　 　　 B. that when　　　　 C. what　　　　　　　　 D. that

30.一Is the girl ______is interviewing the manager of that company your friend?

　　　 一Yes，she is a journalist from CCTV.

　 A. whom　　　　　 B. which　　　　　　 C. who　　　　　　 D. whose

29. She worked so quietly ______ no one knew she was there.

　 A. which 　　　　　　　　 B. after　　　　　　　　　　　 C. as 　　　　　　　　　　　　　 D. that

28. Beth has a beautiful ______. Listen! She is singing very well.

　 A. voice 　　　　　　　　 B. look 　　　　　　　　　　　 C. sound 　　　　　　　　　　 D. smell

27. Please ______ the lights when you leave the classroom.

　 A. turn in 　　　　 B. turn up 　　　　　 C. turn off 　　　　　 D. turn out

26. -Why didn’t Alice come to the party last night?

　 -I don’t know ______.

　 A. why didn’t she 　 B. why she didn’t 　　　 　C. why did she 　　　　　　　 D. why she did

25. I usually go to school ______ bike, but sometimes I go to school ______ foot.

　 A. with; on 　　　　　 B. on; by 　　　　　　 C. on; with 　　　　　　　　 D. by; on

24. Ted’s mother kept telling Ted not to tell lies, but ______ didn’t help.

　 A. which 　　　　　　　 B. it 　　　　　　　　　　 C. she 　　　　　　　　　　　　 D. he

23. -Where is mom now?

　 　-I’m not sure. She ______ be in the kitchen.

　 A. shall 　　　　　　　　 B. may 　　　　　　　　 C. need 　　　　　　　　　　　　　　 D. must

22. Shark is getting old and cannot jump as ______ as he did.

　 A. high　　　　　　　　　 B. higher　　　　　　　　　　 C. highest 　　　　　　　　 D. much higher