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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 480

The time he has devoted in the past years _______ the disabled is now considered ________ of great value.

A.to help; being B.to helping; to be C.to help; to be D.to helping; being
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Thetimehehasdevotedinthepastye