—Did you ask Tom for help?

—I ________. —I managed perfectly well on my own.

A. needn’t have                  B. don’t need to                 C. didn’t need to                 D. needn’t

Michael  ______ be a policeman, for he is much too short.
A. needn’t    B. can’t      C should       D.  may

You ____ him . He will come to realize it some day .

A . needn''t punish             B . should have punished    

C . needn''t have punished       D . wouldn''t punish

 As you worked late yesterday, you ______ have come this morning.

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

 It is suggested that such a law ______.

  A. needn’t be passed    B. mustn’t be passed   C. not be passed   D. will be passed