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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 709

When he was young, he used to      hard at his lessons.

A.devote to working B.devote himself to work
C.be devoted to work D.be devoted to working
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Whenhewasyoung,heusedtohardath