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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1501

Often, when he        something that        him, he wasted his time dozing.

A.should be doing, gave
B.should have been doing, was given
C.should do, was given
D.should have been doing, had given
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Often,whenhesomethingthathim,h