21. It is reported that the floods have left about _________ people homeless.

A. two thousand B. two-thousands C. two thousands D. two thousands of

22. Work gets done ______ when people do it together，and the rewards are higher too.

A. easily B. very easy C. more easily D. easier

23. The children talked so loudly at dinner table that I had to struggle ______.

A. to be heard B. to have heard C. hearing D. being heard

24. —— My cat's really fat.

—— You ______ have given her so much food.

A. wouldn't B. couldn't C. shouldn't D. mustn't

25. The play had already been on for quite some time when we ____ at the New Theatre.

A. have arrived B. arrived C. had arrived D. arrive

26. The open-air celebration has been put off _______ the bad weather.

A. in case of B. in spite of C. instead of D. because of

27. Many of them turned a deaf ear to his advice，_______ they knew it to be valuable.

A. as if B. now that C. even though D. so that

28. The moment I got home，I found I my jacket on the playground.

A. had left B. left C. have left D. was leaving

29.Not until the motorbike looked almost new repairing and cleaning it.

A. he stopped B. did he stop C. stopped he D. he did stop

30. He doesn't have furniture in his room ——just an old desk.

A. any B. many C. some D. much