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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1260

The real reason why prices ____ , and still are, too high is complex, and no short discussion can satisfactorily explain this problem.

A.were B.will be
C.have been D.had been
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Therealreasonwhyprices,andstil