32．We tried to find a table for seven ,but they were all_______.

A. given away　　 B. kept away　　 C. taken up　　　 D. used up

31．The time is drawing near _____food raised in space will directly benefit humans below.

A. where　　 B. when　　　 C. whether　　　 D. why

30. 　　　he met with the difficulty did he realize the importance of our help．

A．Even though　　　 B．Never until　　　 C．Only before　　　　 D．Ever since

29．______at my classmates’ faces, I read the same excitement in their eyes.

A. Looking　　　 B. Look　　　 C. To look　 D. Looked

28. -Do you know our town at all?

　　 -Yes, this is the third time I_______ here.

　 A. was　　 B. am coming　　 C. came　　　 D. have come

27. In recent years travel companies have succeeded in selling us the idea that____, the better our holiday will be.

　 A. we go the further　　　　　　　　 B. the farther do we go

　 C. the further we go　　　　　　　　 D. the further we will go

26. When I was doing shopping in the market the other day , I ______an old friend of mine , who I hadn’t met for twenty years.

　A. came up　　 B. came over　　 C. came across　 D. came down

25. Sam insisted that the picture Mr. Green referred to _______.

A. be worth buying　　　　　　　　 B. was worth to be bought

C. being worth buying　　　　　　　 D. was worth buying

24．-The thread of my kite broke and it flew away．

-I told you it would easily break　　　　 it was the weakest．

A．when　　　　　 B．there　　　 C．that　　　　 D．where

23．______fail in the coming examination, XiaoMing is working hard to go over his lessons.

　　 A. Don’t to　　 B. Not to　　　 C. To not　　 D. Not being to