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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 1401

Every evening the students go to bed at 10:30______ and the lights are turned off.

A.at once B.on purpose C.at present D.as usual
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Everyeveningthestudentsgotobed