15. I was afraid _____ to my customers because I was afraid _____ them.

　　 A. of talking back; to lose　

　　 B. of talking back; of losing

　　 C. to talk back; to lose　　　　

　　　　 　　 D. to talk back; of losing

14. - What caused the party to be put off?

　　 - _____ the invitations.

　　 A. Tom delayed sending　　 B. Tom’s delaying sending

　　 C. Tom delaying to send　　 D. Tom delayed to send

13. There are lots of places of interest _____ in our city.

　　 A. needs repairing　　　　　　　 B. needing repaired

　　 C. needed repairing　　　　　　　 D. needing to be repaired

12. The Space Shuttle Columbia broke into pieces over Texas as it returned to the earth on February 1, 2003,

_____ all seven astronauts aboard.

　　 A. having killed　　　　　　　　　　 B. killing　　 C. being killed　　　　　　　　　　　　 D. killed

11. His letter, _____ to the wrong number, reached me late.

　　 A. having been addressed 　　　　　　 B. to have addressed

　　 C. to have been addressed 　　　　　　 D. being addressed

10. - Tom enjoys _____ basketball on Sunday afternoons, doesn’t he?

　　 - Yes, he does. But what his sister enjoys _____.

　　 A. to play; dancing　　　　　　　 B. playing; to dance　　

　　 C. to play; to dance　　　　　　　　　 D. playing; is to dance

9. _____ from the appearance, it is very peaceful; but in fact, a war will break out soon.

　 A. Judged　　　　　　　　　　　　　　　　 B. Judging　　　　 C. Having judged　　　　　　 D. To judge

8. _____ his age, the little boy read quite well.

　 A. Considering　　　　　　　　　　　　　　　　　　　　　　　　　 B. Considered　　

　 C. Consider　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 D. Having considered

7. The little boy still needs the _____ 20 dollars to do　 with some things _____.

　 A. remaining; remained to be settled

　 B. remaining; remaining to be settled

　 C. remained; remained to settle

　 D. remained; remaining to settle

6. Taking this medicine, if _____, will of course do good to his health.

　 A. continued　　　　　　　　　　　　　 B. to continue　　　 C. continues　　　　　　　　　　　　　　　　　 D. continuing