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    We haven’t settled the problem of it is necessary for him to study abroad. A. that B. whether C. what D. how 【查看更多】

     

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     We haven’t settled the problem of_______it is necessary for him to study abroad.

    A．that             B．whether          C．what              D．if

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    We haven’t settled the problem of ______ it is necessary for him to study abroad.

    　 A. that　　　　　 B. whether　　　 C. what　　　　　 D. how

     

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