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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1830

It’s a rule in my class that our classroom ______ before 6:00 p.m. every day.

A.be able to clean B.should be cleaning
C.must clean D.must be cleaned
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It’saruleinmyclassthatourclass