21. I tried hard to get some information about the new technology out of his mouth, but he remained____________.

A. quiet　　　　　　 B. secret　　　 C. silent　　 D. calm

20. When I tried to find _________that prevented so many people from taking part in the program, it seemed to me that there were two main reasons.

A. why it did　　 B. that it did　 　C. what it was　 D. why it was

19. Up to Tuesday's attack, the worst school shooting in the U. S. was in March 1998 in Jonesboro, two boys, aged 11 and 13, shot and killed a teacher and four girls.

A. while　　　　 B. where　　　 　　C. when　　　 　D. then

18. -How did you find your visit to the museum, Jane?

--_________.

A. Oh, wonderful, indeed　　　 　　B. By taking a number 3 bus

C. I went there alone　　　　　　 D. A classmate of mine showed me the way

17. I feel silly in these clothes. Everyone will___________ me.

A. worry about　　　　　　　　 　B. make fun of

C. get rid of　　　　　　　　　 　D. take interest in

16. _________good, the food was soon sold out.

A. Tasted　　 　B. Being tasted　　 　C. Tasting　 　　D. Having tasted

15. The queen will visit the town in May, she will open the new hospital.

A. when　　　 　B. then　　　　 　　C. while　　　 　D. but

14. -What were you doing when she dropped in?

　　 -I for a while and_________ some reading.

A. was playing; was going to do　 　　B. played; did

C. had played; was going to do　　 　　D. had played; did

13. It was not a good idea to go skating. You __________your leg.

A. can break　　　　　　　　　　 　　B. could break

C. could have broken　　　　　　 　　D. could have been broken

12. Although motor car has been with us for almost a century, I have never been able to drive __________American one.

　A. the; an 　B. was remained　 　　C. a; the　　 　D. the; the