题目内容

You ________ wait for him. I’m not sure whether he’ll come back or not today.
A．can’tB．shouldn’tC．mustn’tD．needn’t
D

试题分析：句意:你不必等他了。我不确定他今天是否回来。can’t 不能，不会；shouldn’t 不应该；mustn’t 禁止，不要；needn’t 不需要，不必。根据句意，我不确定他今天是否回来可知，这里是没有必要等他。故选D。
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