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    The troops on for three days and nights. The soldiers are in great need of rest. A. had marched B. have been marching C. marched D. are marching 【查看更多】

     

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    The troops ____ on for three days and nights．The soldiers are in great need of rest．

    A．had marched                  B．have been marching

    C．marched                                      D．are marching

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