19. There was a terrible noise ____ the sudden burst of light.

A. followed　 B. following　 C. to be followed　 D. being followed

18. Do you know the boy　 ___ under the big tree?

A. lay　 B. lain　 C. laying　 D. lying

17. --- What do you think of the book?

　 --- Oh, excellent. It’s worth　 _____　 a second time.

A. to read　 B. to be read　 C. reading　 D. being read

16. Go on ____ the other exercise after you have finished this one.

A. to do　 B. doing　 C. with　 D. to be doing

15.the purpose of the new technology is to make life easier, ____ it more difficult.

A. not make　　 B. not to make　 C. not making　 D. do not make

14. The chair looks rather hard, but in face, it is very comfortable to ____

A.　　 sit　 B. sit on　 C. be sat　 D. be sat on

13. They knew her very well. They had seen her　 ____ up from children.

A. grow　 B. grew　 C. was growing　 D. to grow

12. Having a trip abroad is certainly good for the old people, but it remains ____ whether they will enjoy it.

A. to see　　 B. to be seen　 C. seeing　 D. seen

11. It is said in Australia there is more land than the government knows ______

A. it what to do with.　 B. what to do it with　 C. what to do with it　 D. to do what with it

10. They will grow as tall as you soon, if they ____

A. would help growing like that　　　 B. keep to grow like it　

C. keep growing like that　　　　　　 D. will keep growing like that.