问题描述：
（英语）关于need的一道选择题
There was no one else at the box office.I ________ in a queue.
A.didn't need to wait
B.mustn't wait
C.needn't have waited
D.needn't wait
我觉得A和D都对
There was no one else at the box office.I ________ in a queue.
A.didn't need to wait
B.mustn't wait
C.needn't have waited
D.needn't wait
我觉得A和D都对
问题解答：
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