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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 629

—Can you tell me _____when the teacher came into the classroom?
—Sorry, I don’t know.

A.what were the students doing
B.what are the students doing
C.what the students were doing
D.what the students are doing
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—Canyoutellmewhentheteachercam