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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 316

Though I was tired out that evening, I _____ from falling asleep by the great pain in my knee.

A.was prevented B.had prevented C.has prevented D.am prevented
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ThoughIwastiredoutthatevening,