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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1777

People          send out sky lanterns to ask for help when in trouble, but now sky lanterns          celebrating the festivals.

A.used to; are used to
B.used to; are used for
C.are used to; are used for
D.are used to; are used in
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Peoplesendoutskylanternstoaskf