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    The committee over the problem among themselves for two hours. a. has argued b. has been arguing c. have argued d. have been arguing 【查看更多】

     

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    The committee(委员会)_________ over the problem among themselves for two hours．


    1. A.
      has argued
    2. B.
      has been arguing
    3. C.
      have argued
    4. D.
      have been arguing

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    The committee(委员会)_________ over the problem among themselves for two hours．

    [　　]
    A．

    has argued

    B．

    has been arguing

    C．

    have argued

    D．

    have been arguing

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