31. When people talk about the cities of the U.S., the first _____comes into their mind is New York.

A. of which　　 B. one　　　　 C. that　　　　 D. of them

30. He did it_____ it took me.

A. one-third a time　 B. one-third time　 　C. the one-third time 　D. one-third the time

29. He will have learned English for eight years by the time he_____ from the university next year.

A. will graduate　 B. will have graduated　 C. graduates　 D. is to graduated

28. I promise her daughter she ______ get a nice present on her birthday.

A. should　　 B. must　　 C. would　　　 D. shall

27. Books are the important records we keep_____ man’s thoughts, ideas and feelings.

A. up　　　　 B. of　　　　 C. for　　　　 D. on

26. -How did it_____ that you made so many mistakes in your homework?

-I myself haven’t figured it out yet.

A. bring about　　 B. come about　　　 C. come across　　 D. occur to

25. Few users reported it to the police when　　　 in shopping on the Internet.

　　　 A．cheated 　　　　　　 B．cheating　　　　　　　 C．be cheated　　　　　 D．having cheated

24. -How wide is the Yellow River?　

-That _____from where to where.

A. depends　　 B. changes　　 C. refers　　 D. lies

23. This is our contribution to _____ world of the 21^st century, _____ world of independence and mutual understanding.

A. the;/　　　　　　 B ./;a　　　　　　　　　　 C. a;the　　　　　　　　 D. the;a

22. Mr Brown has three children, one of whom is a child of six, ____ twins of twelve.

A. another　　　　 B. other　　　　 　C. the others　　　　 D. others