31．English is more and more important in our daily life. _____ of English is helpful if you are to _____ English literature.

　　 A．Good knowledge; study 　　　　　 B．A good knowledge; studying

　　 C．Good knowledge; studying 　　　　 D．A good knowledge; study

30．In the midst of utter devastation and chaos, a father left his wife safely at home and rushed to the school where his son was supposed to be, only 　　　　　that the building was as flat as a pancake.

　　 A．to discover　　 B．to be discovered　　　　　　　　 C．discovering　　 D．discovered

29．_____ meet his sister at the airport, he had to get up early.

　　 A．So as to　 　　 B．In order to 　 C．So that 　　　 D．In order that

28．-Mr. Johnson, would you have some more ice-cream?

-No, thanks. It’s very good, but I have to _____ my weight, you know.

　　 A watch．　　　　 B．remain　　　　 C．notice　　　　 D．care

27．Why don't you put the meat in the fridge? It will _____ fresh for several days.

A．be stayed　　 B．stay　　　　　 C．be staying　　 D．have stayed

26．The number of the stamps _____ limited, so a number of people _____ to have a look at them.

A．are; want 　　 B．is; wants 　　 C．is; want 　　　 D．are; wants

25．We were in _____ when we left that we forgot the airline tickets.

A．a rush so anxious　　　　　　　 B．a such anxious rush　　　　　

C．so an anxious rush　　　　　　　 D．such an anxious rush

24．Scientists say it may be five or six years ____ it is possible to test this medicine on human patients.

A．since　　　　 B．after　　　　　 C．before　　　　 D．when 　　　

23．-What do you want to do next? We have half an hour until the basketball game.

　　 -_____. Whatever you want to do is fine with me.

　　 A．It just depends　　　　　　　　　 　　　　　　　　　 B．It’s up to you　　　　

　　 C．All right　　　　　　　　　　　　 D．Glad to hear that

22．-Does David often come to school ____ bus?

　　 -Yes, but sometimes he comes ____ his father’s car.

　　 A．take; in　　　 B．by; by　　　　 C．by; in　　　　 D．in; with