28. ______ we admit that there are still some problems about NMET,　 we don’t mean that it’s of no use.

　　　 A．While　　　 B．Until　　　　 　　 C．As　　　　　　　 D．Unless　

27. Mr. Smith found that gas ___　　　　 from the pipe when he came back because we forgot to switch off. But at last we were lucky to escape 　　　　　　.

　 A. escaped, being punished　　 B. was escaping, being punished

　 C. escaped, punishment　　　　 D. was escaping, punishing

26. Human facial expressions differ from those of animals in the degree ______ they can be controlled on purpose.

A. with which　　　　　 B. to which　　　　　　 C. of which　　　　　 D. for which

25. With world economic crisis_________, people appeal to the government for more unemployment benefits.

　 A．worsening　 　 B．worsened　 　　 C．gone bad　 　　　 D．went bad

24. I didn't want to be _________________ with politics at all.

　　　 A．dealt　　　　　　　　　 B．associated　　　　　　 C．involved　　　　　　　 D．consulted

23. The job will be offered to　　　　 is capable of performing it well.

　　　 A．whomever 　　　 B．whoever　 C．the one　 　　　 D．anyone

22. Although the small room is　　　　 the large one, it is more beautifully decorated.

　　　 A．one- third the size of　　　 　　 B．the one- third size of

　　　 C．the size of one-third　 　 D．one-third of the size

第一节 单项填空(共15小题;每小题1分,满分15分)

从A、B、C和D四个选项中,选出可以填入空白出的最佳选项。

21. Panama,____ country in Central America, is the only place in the world ____ someone can see the sun rise on the Pacific Ocean and set on the Atlantic.

A. the, in what　　　　　　　　　 B. a, where　　　　　　　　　 C. /, where　　　　　　　　　 D. a, which