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    I don’t know if Mr Wang ________here tomorrow . If he ______ , please tell me.
    A.comes , comesB.will come ,comes
    C.comes , will comeD.will come ,will come
    B
    if既可以引導賓語從句又可以引導狀語從句。if充當賓語從句的連接詞時,相當于whether,詞義為“是否”,遵循賓語從句的時態(tài)規(guī)則,可根據(jù)語境選擇任何時態(tài);充當從屬連詞,引導條件狀語從句時,詞義為“如果”,若主句中的謂語動詞用一般將來時,則從句中的謂語動詞通常用一般現(xiàn)在時表示將來。
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