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问题: The airliner was half an hour late,so I_____to the airport.

The airliner was half an hour late,so I_____to the airport.
A. didn’t need to hurry
B. needed not to hurry
C. needn’t have hurried
D. need not to have been hurried

解答:

needn't have done sth  本没必要做某事
 如 I dressed very warmly for the trip, but I needn't have done so. The weather was hot.

hurried to the airport 的hurried是动词过去时 不是形容词
B. needed not to hurry 这里有to 说明是need行为动词 但行为动词的否定是助动词否定 是 didn't need to 而不是needed not to hurry

D need not to have been hurried 也是否定错了 而且hurried是动词过去时 (hurry to sp.结构中的hurry是动词) 
A. didn’t need to hurry 至于这个选项 虽然他也是过去的 但根据句子意思 他已经来了 是本来没必要这么早来的 而needn't have done sth 是 "本没必要做某事的"意思 用这个确切点 意思比较符合