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    — How is the project going?

    　 — In fact, you can go and check it out yourself ______.

    A. if it necessary　　

    B. if necessary　　

    C. if you are necessary　

    D. it is necessary

    B

     

    本题考查的是if 引导的条件句中的省略形式。if necessary是if it is necessary的省略形式。

     

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