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  • 更新 2022-09-04
  • 科目 英语
  • 题型 选择题
  • 难度 较易
  • 浏览 131

In many countries,people put their fingers up to their mouths ________ silence.(  )

A.

ask for

B.

asking for

C.

to ask for

D.

asked for

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相关知识点

Inmanycountries,peopleputtheir