31. -It’ll take at least 2 hours to do this!

　　　 - Oh, _____! I could do it in 30 minutes.

　　　 A. come on　　　　　　　　 B. pardon me　　　　　 C. you are right　　　　　 D. is that true

30. The most common thing to do on the earth can be a big threat if _____ properly, according to

　　　 Chen Shanguang, designer of the spaceship.

　　　 A. doesn’t handle　　　　 B. not handled　　　　 C. not handling　　　　　 D. having not handled

29. He speaks English well indeed, but of course not _____ a native speaker.

　　　 A. as fluent as 　　　　　 B. more fluent than　 C. so fluently as　　　　　 D. much fluently than　　　

28. _____　recent report stated that the number of Spanish speakers in the U.S. would be higher

　　　 than the number of English speakers by　_____　year 2090.

　　　 A. A; the　　　　　　 　　　 B. A; 不填　　　　 　　 C. The; 不填　　　　 　　 D. The; a

27. It was foolish of him to ________ his notes during that important test, and as a result, he got

　　　 punished.

　　　 A. stick to　 　　　　　　　 B. refer to　 　　　　　　 C. keep to　 　　　　　　　 D. point to

26. You’d better take something to read when you go to see the doctor _____ you have to wait.

　　　 A. even if 　　　　　　　　 B. in case　　　　　　　　 C. as if　　　　　　　　　　　 D. in order that

25. Not only _______ give us relaxation and pleasure, but also ________ increase our

　　　 knowledge.

　　　 A. can travel; it can　 　 B. travel can; can it C. can travel; can it　 　 D. travel can; it can

24. Alice used to smoke _____ but she has given it up.

　　　 A. seriously　　　　　　　　 B. heavily　　　　　　　　 C. badly　　　　　　　　　　 D. hardly　　

23. - _____ you please write a 3000-word report about this subject for me?

　　　 - Perhaps I _____ only write a 1000-word one, but I even doubt it.

　　　 A. Could; might　　　　　 B. Would; might　　　 C. Might; could　　　　　 D. Would; could

22. The number of deaths from heart disease will be reduced greatly if people _____ to eat more

　　　 fruit and vegetables.

　　　 A. persuade　　　　　　　　 B. will persuade　　　 C. be persuaded　　　　　 D. are persuaded