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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1931

Was it in 1997______he was still at middle school_______ this boy became an expert at computer?

A.that; where B.when; where
C.in which; in which D.when; that
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Wasitin1997hewasstillatmiddles