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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 841

      good manners to say “Sorry” when you knock into someone but    no need to say it again and again .

A.There are ; there is B.It is ; there is C.There is ; it is D.It is ; it is
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goodmannerstosaySorrywhenyoukn