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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 211

It took us _______ to finish the new research project.

A.three hour and a half B.three and a half hour
C.three and half hours D.three and a half hours
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Ittookustofinishthenewresearch