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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 724

—What were you doing at this time yesterday?
—I ______ on the grass and playing with Tony.

A.sit B.sat C.am sitting D.was sitting
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—Whatwereyoudoingatthistimeyes