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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1714

—Has Tom finished his task yet?
—I’m not sure. But he _____ on it last week

A.was working B.has been working
C.worked D.had been working
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—HasTomfinishedhistaskyet?—I’m