31. If you are a regular drinker of coffee, drinking a little of it just eases the symptoms of caffeine ________.　

A. addiction　　　　 B. addition　　 C. affection　　 D. withdrawal

30. China won't be a fast-growing but fragile country. It has to develop it's military strength in order to make any power think twice ______trying to offend China's key interests.

A. before　 B. when　　　 C. while　　　 D. until

29. Both parents and teenagers should try their best to communicate more with each other and _____ the gap between them.　

A. open　 B. adjust　 C. narrow　　 D. reduce

28.“You’ll have to wait for two hours, ____ is, at about 11:30, ____ the medical report will come out, ”the doctor said to me.

　 A. that; when　　　 B. which; that　　 C. that; which　　 D. it; whose

27. Worried about the time_____, Mary had made a list of the sites she wanted to see in Beijing .

A. adequate　　　 B. available　 C. efficient　　 D. accessible

26. My computer has a virus. I asked my friend to take a look at it. She can ____ any computer problems.

　 A. get out　 B. pick out　　 C. take out　　 D. sort out

25. Inception, which cost ＄150-million-plus US to make, earned a healthy ＄76 million US at the box office world wide during its opening weekend, ____ that epic and sci-fi aren’t necessarily mutually exclusive in the movie industry.

　 A. to prove　　 B. prove　　 C. proving　　　 D. proved

24. The Green Corporation donated the property to the state of California, with one condition ____ the Green family would be allowed to use it when they wished.

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

23. The work has _______ the status of a classic among the composer’s admirers.

A. required　　　　 B. acquired　　 C. inquired　　 D. inspired　

22. If Rose ____ her diamond in a safer place, it ____ stolen.

　 A. had put; might not have been　　　　　 B. had put; could be

　 C. had put; might be　　　　　　　　　　 D. had not put; could not have been