33. The direction _______ which the president would go was kept secret ________ safety concern .

　 A. for ; over　 B. from ; about　 C. in ; for　 D. at ; as

32. You ______ tell Margaret --- I don’t want her to know about this matter .

　 A. can’t　 B. mustn’t　 C. needn’t　 D. shouldn’t

31. You needn’t take your shoes off when you enter someone’s house in Australia , _____ , of course , they’re very dirty .

　 A. if　　 B. except　 C. when　 　D. unless

30.--- Could I ask you a rather personal question ?

　--- ________.

A. Yes, don’t worry　 B. Of course , go ahead　

C. Yes, help yourself　 D. Of course , why not ?

29.At present the hotel is almost empty , but I’m sure things will start to _____ in the spring .

　 A. rise up　　 B. hold on　 C. pick up　 D. hang out

28.The Chinese parents don’t care what a hard life they themselves live but are determined that their children receive　 ______.

　 A. the possible best education　 B. the best possible education

　 C. the education best possible　 D. the education possible best

27.--- What did you think of yesterday’s film ?

　 --- Well , I ________ when the film was only half way through.

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

26. --- How much vinegar(醋) did you put in the soup ?

　 --- I’m sorry to say , _______. I forgot .

　 A. no　　 B. no one　 C. nothing　 D. none

25. He is a strict but kind-hearted teacher , _______ his students respect but are afraid of .

　 A. one whom　 B. for whom　 C. which　 D. that

24. _______ all the inventions have in common is ______ they have succeeded .

　 A. What ; what　 B. That ; that　 C. What ; that　 D. That ; what