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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 200

The students        busily when Miss Brown went to get the book she      in the office.

A.were writing; left B.wrote; had left
C.had written; left D.were writing; had left
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ThestudentsbusilywhenMissBrown