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    We the problem for quite some time, but we any conclusion yet. A. have been discussing; haven’t reached B. have discussed; haven’t been reaching C. discussed ; haven’t reached D. had discussed; haven’t reached 【查看更多】

     

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    We _______ the problem for quite some time , but we _______ any conclusion yet.

    A had discussed ; haven't reached                      B. discussed ; haven't reached 

    C have discussed ; haven't been reaching            D. have been discussing ,haven't reached 

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    We ________ the problem for quite some time, but we 　　　　    any conclusion yet.

    [　　]

    A．had discussed, haven't reached

    B．discussed, haven't reached

    C．have been discussing, haven't reached

    D．have discussed, haven't been reaching

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