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    The workers are the building of the new streets in Yangcheng in order to complete them ahead of time. A. taking up B. making up C. stepping up D. putting up 【查看更多】

     

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    The workers are ______ the building of the new streets in Yangcheng in order to complete them ahead of time.

      A. taking up       B. making up  C. stepping up D. putting up

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