34. Failure is never pleasurable, but it can make a positive contribution to your life_____ you learn to use it.

　 A. since　 B. once　 C. until　　 D. unless

33. He suggested the problem which is referred _______ at the meeting.

　 A. to be discussed　 B. to being discussed　 C. to discuss　 D. to discussing

32. Maybe all people realize that _____ is to be next Mayor will face masses of problems.

A. who　　 B. whoever　　 C. whomever　　 D no matter who

31.-- Is Alice a teacher?

　 --No, but she ________ in a middle school for 10 years.

　 A. would teach　 B. has taught　 C. is teaching　 D. taught

30. The news is made ________ to everyone throughout the world that our Chinese athletes have won 5 gold medals in the Winter Olympics.

　 A. be known　　　　 B. to be known　　　 C. to know　　　　 D. known

29.In no condition _ ________ to go against nature.

A. we are allowed　 B. we can allow C. are we allowed　 D. can we allow

28. ____ she is not so healthy _____ she used to be?

A. How it is that; as　 　　　　　　B. Why is it that; as

C. Is it why; that　　　 　　　　　D. How is it that; what

27. The following are some tips to help your business ______and shorten the time it takes you to start earning a profit.

A. take over　 B. take up　 　　C. take off　 　　　D. take place

26. Arriving in the deep night, we found there was no food _____ as all the shops were shut.

A. left　　 　　B. available　　 C. remaining　　 D. convenient

25. I’ve left the washing outside. If it ________ rain, can you bring it in?

A. would　 　B. should　 C. may　 　　D. can