15. -Why is it ________ so many people enjoy eating on the run?

　 　 -Of course, the most obvious answer is that fast food is fast.

A. that　　　 　　　　　　　　　　　 B. which　　　 　　　　　　　　 C. what　　　 　　　　　　　　　 D. how

14. After working at the firm for two years, Anne _________ from her position and went abroad

for further study.

　 A. separated　　　　　 B. compromised　　　 　C. resigned　　　　　 D. retired

13. With a large amount of work __________, the chief manager couldn’t spare time for a holiday.

　 A. remained to be done　　　　　　 　　　　　　　　　　　　 B. remaining to be done

　 C. remained being done　　　　　　 　　　　　　　　　　　 D. remaining to do

12. The time is not far away ________ the information will be made known _______ more

workers will be trained for their jobs.

A. until; which　　　 　　 B. when; that　　　 　　 C. before; that　　　 　 D. as; which

11. -The computer costs $ 900.

　 -It ________ be that expensive. Anyway, it is a used one.

A. shouldn’t　　　　　 B. mustn’t　　　　　　 C. will not　　　　　 　D. needn’t

10. To everyone’s surprise, _________ painting, _________ simple design of some natural scenery, won the first prize in the competition.

A. a; the　　　　　　　 　　　 B. the; a　　　　　　　　　　　　 　　 C. a; a　　　　　　　　　　　　 　　 D. the; the

9. -Oh, dear, you’re back home at last!

　-You can’t imagine all the difficulty I had ________ home in the heavy rain.

A. walked　　　　　　 B. walk　　　　　　　 　C. to walk　　　　　　 D. walking