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    【题目】I don’t know if ______ to the party．I will let you know if ______.

    A．he will come; he comes B．he will come; he will come

    C．he comes; he comes D．he comes; he will come

    【答案】A

    【解析】

    试题分析：句意：我不知道是否他能否来参加，如果他来了，我会让你知道。第一个if引导的是宾语从句，因为他将要来，所以可以用将来时；第二句的if引导的是条件状语从句，不能用将来时，而用一般现在时来代替，所以选A。

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