31. She often helps the students _____ she thinks are not good at English.

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

30. He sat quietly in the room, listening to the rain _________ against the window.

A. beating　　　 B. hitting　　　　 C. striking　　　 D. knocking

29. I _______ you for sixteen years and I still don’t know what goes on in your mind.

A. have married　　　　　　　　　 B. have got married to

C. have married with　　　　　　　 D. have been married to

28. ---How soon will he leave for South Korea?

---________.

A. Every three weeks　　　　　　　 B. For three weeks.

C. Three weeks later　　　　 　　　　D. In three weeks’ time

27. I’d like to know the way you think of _____ your handwriting.

A. to improve　　　 B. improving　　 C. how to improve　 D. improve

26. Every time she tried to argue with her brother, she would ______by crying her eyes out.

A. keep on　　　　 B. stay up　　　　 C. end up　　　　 D. benefit from

25. There was a lot of fun at last night’s party. You ____ have come, but why didn’t you?

A. must　　　　　 B. might　　　　　 C. need　　　　 D. should

24. ---Did you write to Grace last summer?

---No, but I ______ her over winter vacation.

A. will be seen　 B. will be seeing　 C. will have seen　 D. will have been seen

23. The best way to learn a foreign language is to go to the country and learn it from ____ speakers.

A. mother　　　 B. excellent　　　　 C. real　　　 　D. native

22. There are only ___________ natural resources as there were thirty years ago.

A. as half much　　 B. as half many　　 C. half as much　 D. half as many