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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
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They ______ on the program for almost one week before I joined them, but still no good results _______ so far.

A.had worked ; come out B.have worked ; came out
C.had been working ; have come out D.have been working ; have come out
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Theyontheprogramforalmostonewe