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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 1920

Air bags for cars were invented _____ lives. Without them more people would be injured in car accidents.  

A.saving B.saved C.to save D.to have saved
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Airbagsforcarswereinventedlive