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

6. This machine _______. It hasn’t worked for years.

　 A. didn’t work　　　　　　　 B. wasn’t working　　　 C. doesn’t work　　　　　 D. isn’t working

5. When ______ different cultures, we often pay attention only to the differences without noticing the many similarities.

　 A. compared　　　　　　　　 B. being compared　　　 C. comparing　　　　　　　 D. having compared

4. _______ is our belief that improvements in health care will lead to a stronger, more prosperous economy.

　 A. As 　　　　　　　　　　　　 B. That　　　　　　　　　　　 C. This　　　　　　　　　　　 D. It