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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 365

In my opinion, life in the twenty-first century is much easier than ______ .

A.that used to be B.it is used to be
C.it was used to D.it used to be
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Inmyopinion,lifeinthetwentyfir