11. Thank you for sending us ____ fresh vegetables of many kinds. You have done us ____ a great service.

A. 不填;a B. the;a C. 不填;不填 D. the;不填

12. Now that we ____ all the money, it's no use turning on me and saying it's all my fault.

A. had lost B. lost C. have lost D. lose

13. We had a really bad time about six months ago but now things are ____.

A. looking up B. coming up C. making up D. turning up

14. ——When did it begin to snow?

——It starte

d ____ the night.

A. during     B. by     C. from     D. at

15. Young as he is, David has gained ____ rich experience in ____ society.

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

16. ____ from endless homework on weekends, the students now find their own activities, such as taking a ride together to watch the sunwise.

A. Freed     B. Freeing     C. To free     D. having freed

17. ——So you missed the meeting.

——____. I got there five minutes before it finished.

A. Not at all     B. Not exactly     C. Not especially     D. Not really

18. ——Do you mind if I smoke?

——____

A. Why not?     B. Yes, help yourself     C. Go ahead     D. Yes, but you'd better not

19. ——We must thank you for taking the trouble to cook us a meal.

——____.

A. With pleasure     B. It doesn't matter     C. It was no trouble at all     D. By all means

20. ____ the temperature might drop, coal was prepared for warming.

A. To consider     B. Considered     C. Considering     D. To be considered

21. ——Tom, you are caught late again.

——Oh, ____.

A. not at all     B. just my luck     C. never mind     D. that's all right

22. ——What do you think of the concert?

——I really enjoy it. I didn't expect it was ____ wonderful.

A. as     B. more     C. most     D. very