16. My friend, who ______ on the International Olympic Committee all his life, is retiring next month.

　 A. served　　　　　　　　　　 B. is serving　　　　　　　　 C. had served　　　　　　　 D. has served

15. We always keep ________ spare paper, in case we ran out.

　 A. too much　　　　　　　　 B. a number of　　　　　　 C. plenty of　　　　　　　　 D. a good many

14. If you can’t decide which of the two books to borrow, why don’t you take ______? I won’t read them this week.

　 A. all　　　　　　　　　　　　 B. any　　　　　　　　　　　　 C. either　　　　　　　　　　 D. both

13. I was given three books on cooking, the first _______ I really enjoyed.

　 A. of that　　　　　　　　　　 B. of which　　　　　　　　 C. that　　　　　　　　　　　　 D. which

12. Progress so far has been very good. _______, we are sure that the project will be completed on time.

　 A. However　　　　　　　　 B. Otherwise　　　　　　　 C. Therefore　　　　　　　 D. Besides

11. I would like a job which pays more, but ________ I enjoy the work I’m doing at the moment.

　 A. in other words　　　　 B. on the other hand　　 C. for one thing　　　　　 D. as a matter of fact

10. Letterboxes are much more _______ in the UK than in the US, where most people have a mailbox instead.

　 A. common　　　　　　　　 B. normal　　　　　　　　　 C. ordinary　　　　　　　　 D. usual

9. _________ by keeping down costs will Power Data hold its advantage over other companies.

　 A. Only　　　　　　　　　　　　 B. Just　　　　　　　　　　　　 C. Still　　　　　　　　　　　 D. Yet

8. We’re trying to ring you back, Bryan, but we think we ________ your number incorrectly.

　 A. looked up　　　　　　　　 B. took down　　　　　　　 C. worked out　　　　　　 D. brought about

7. The company had about 20 notebook computers but only one-third _______ used regularly. Now we have 60 working all day long.

　 A. is　　　　　　　　　　　　　　 B. are　　　　　　　　　　　　 C. was　　　　　　　　　　　　 D. were