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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1362

Mr. Smith would have come to see you if it had been possible, but he __________ so busy.

A.was B.had been C.has been D.were
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Mr.Smithwouldhavecometoseeyoui