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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1806

Not until Mr. Smith came to China ___ what kind of a country she is.

A.did he know B.he knew
C.he didn't know D.he could know
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NotuntilMr.SmithcametoChinawha