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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1010

I don’t know ______ or not the books _____ to the homeless children next month are really useful.

A.if, given B.whether, to be given C.whether, giving D.if, which are given
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Idon’tknowornotthebookstotheho