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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1555

_________, I think, and the problems would be settled.

A.If you double your efforts B.Making more efforts
C.So long as you don’t lose heart D.A bit more effort
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,Ithink,andtheproblemswouldbes