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    精英家教网 > 高中英语 > 题目详情
    You ________ in person; a telephone would have been enough.
    A．couldn't have comeB．needn't have come
    C．shouldn't have comeD．mustn't have come
    B
    B考察情态动词加完成式的用法。couldn't have come不可能已经做了某事；         needn't have come 本不必做某事； shouldn't have come本不应该做某事；        mustn't禁止，千万不要。句义：你本不必亲自过来，打个电话就可以了。故B正确。
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