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    [2013天津]13. The water supply has been cut off temporarily because the workers one of the main pipes. A. had repaired B. have repaired C. repaired D. are repairing 【查看更多】

     

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    The water supply has been cut off temporarily because the workers________one of the main pipes.????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? (2013·天津，13)

    A．had repaired? B．have repaired

    C．repaired? D．are repairing

     

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