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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1996

You can only be sure of _____ you have at present; you cannot be sure of something _____ you might get in the future.

A.that; what   B.what; 不填 C.which; that D.what; which
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Youcanonlybesureofyouhaveatpre