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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 629

The time he has devoted in the past ten years ________the disabled is now considered _______of great value.

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