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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 1085

25. Welcome to the Historical Museum, everyone! This stone knife _______ in South Africa and experts can’t be exactly sure about its use.

A.had been found B.was found C.has been found D.would be found
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25.WelcometotheHistoricalMuseu