There was plenty of time.She ----- A.mustn't have hurried B.

B还有很多时间,她不必这么匆忙。shouldn't have done 表示"不该做的却做了"。如:He shouldn't have told her the truth。(他不应该把真相告诉她。事实上已经告诉了。带有责备的口吻。)needn't have done 表示"不需要做。。。",一起远远没有shouldn't have done那么强烈。