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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 724

Had it been possible, I would have gone to attend Monica in the hospital, but I  fully occupied last month.

A.was B.am C. had been D.have been
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相关知识点

Haditbeenpossible,Iwouldhavego