35. --You know who came yesterday?

　 --Yao Ming?. We had a basketball match.

　 -- ________He came and watched the game.

　 　A. You guessed it!　 B. How did you know that?　　

C. Well done!　　 D. That was good news!

34. Don't sit there ________ nothing. Come and help me with this table.

　 　A. do　 　　B. to do 　　C. doing 　　D. and doing

33. AIDS is said ______ the biggest health challenge to both men and women in that area over the past few years.

　 　A. that it is　　　　 B. to be　　　 C. that it has been　 D. to have been

32. I won't tell the student the answer to the math problem until he ____on it for more than an hour.

　 　A. has been working　　　　　　　 　　　　　 B. will have worked

　 　C. will have been working　　　　 　　　　　　 D. had worked

31. __________ fired, your health care and other benefits will not be immediately cut off.

　 　A. Would you be　　 B. Should you be　 C. Could you be　　　 D. Might you be

30. I'm certain David's told you his business troubles. ______, it's no secret that he owes a lot of money to the bank.

　 　A. However　　　 B. Anyway　　 C. Therefore　　　 　　　 D. Though