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    We wrote a letter of thanks to had helped us. A. who B. whom C. whoever D. whomever 【查看更多】

     

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    We wrote a letter of thanks to________ had helped us.

    [　　]

    A．who
    B．whom
    C．whoever
    D．whomever

    查看答案和解析>>

    We wrote a letter of thanks to________ had helped us.

    [　　]

    A．who
    B．whom
    C．whoever
    D．whomever

    查看答案和解析>>


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