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    4．We didn't see him at the lecture yesterday. He it. A．mustn't attend B．can't have attended C．would have not attend D．needed have attended 【查看更多】

     

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    －We didn't see him at the lecture yesterday．

    －He ________ it．

    [　　]

    A．mustn't have attended

    B．would have not attended

    C．couldn't have attended

    D．needn't have attended

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