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    Who is it is waiting outside the room? A. who B. whom C. which D. that 【查看更多】

     

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    Who is it ______ is waiting outside the room?

    [　　]

    　　 　　 　　 　　

    A．who

    B．whom

    C．which

    D．that

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    Who is it　　 is waiting outside the room?

    　 A．who　　　　 B．whom　　　　 C．which　　　 D．that

     

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