12. Tom＿＿＿＿＿＿＿show his exam results to his parents.

　　 A. dare not　　　　　 B. dared　

　　 C. dare to　　　　　　　　　 D. dares not to

11. Let’s clean the classroom, ＿＿＿＿＿＿＿?

　　 A. won’t　 you　　　　　　 B. shall we　

　　 C. do we　　　　　　　　　　 D. will　 not　 you

10. Children＿＿＿＿＿＿＿＿in public very often.

　　 A. should be praised　　　 B. shouldn’t have praised

　　 C. shouldn’t have been praised

　　 D. shouldn’t　 be praised

9. I was really anxious about you. You＿＿＿home without　 a word.

　 A. mustn’t　 leave　　　　　 B. shouldn’t have left

　 C. couldn’t have left　　　　 D. needn’t leave

8. -- What happened to the young trees　 we planted?

　 -- The trees＿＿＿＿＿＿well, but I didn’t water them.

　 A. might　 grow　　　　　　 B. needn’t have grown　

　 C. would grow　　　　 D. would have grown

7. The traffic light is　 red, so I＿＿＿＿＿＿stop my　 car.

　　 A. must　　　 B. have to　　　 C. can　　　 D. mustn’t

6. Mr Bush is on time for everything. How＿＿＿it be that he was late for the opening ceremony?

　 A. can　　　 B. should　　　 C. may　　　 D. must

5. -- Shall I tell John about it?

　 -- No, you＿＿＿＿. I don’t know his telephone number.

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

4. -- May I leave the office before 5 o’clock in the afternoon?

　 -- No, I’m afraid you＿＿＿＿＿＿＿.

　 A. needn’t　　 B. shouldn’t　　 C. mustn't　 D. won’t

3. He seldom listens to others. He＿＿＿＿＿answer for what he has done.

　 A. shall　　　 B. will　　　 C. can　　　 D. would