There_____ be any difficulty in passing the road test since you have practised a lot in the driving school.
    A. mustn't        B. shan't         C. shouldn't       D. needn't

 - Catherine, I have cleaned the room for you.
   - Thanks. You _____ it. I could manage it myself.
    A. needn't do                 B. needn't have done     
    C. mustn't do                 D. shouldn't have done

 -Lucy doesn't mind lending you her dictionary.
   - She ______. I've already borrowed one.
   A. can't          B. mustn't      C. needn't       D. shouldn't

 - Do you know where David is? I couldn't find him anywhere.
   - Well. He _____ have gone far-his coat is still here.
   A. shouldn't       B. mustn't     C. can't      D. wouldn't

- Tom is never late for work. Why is he absent today?

- Something ______ to him.

A. must happen 　　 　 　 　 B. should have happened
C. could have happened 　 　 D. must have happened

 I was on the highway when his car went past followed by a police car. They ____ at
least 150 kilometers an hour.
    A. should have been doing              B. must have been doing
    C. could have done                      D. would have done  

 He paid for a seat, when he ____ have entered free.
   A. could        B. would         C. must         D. need

 This cake is very sweet. You ____ a lot of sugar in it.  
   A. should put      B. could have put      C. might put    D. must have put

 I _____ have been more than six years old when the accident happened.
   A. shouldn't      B. couldn't     C. mustn't       D. needn't

He ___ have completed his work; otherwise, he wouldn't be enjoying himself by the seaside.
   A. should       B. must        C. wouldn't       D. can't