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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:1554

—That must have been a lot of work.
—Yeah, it ________ us three days to finish it.

A.takes  B.had taken
C.took  D.was taking
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—Thatmusthavebeenalotofwork.—Y