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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1460

Tony ________ full marks, but he was so careless as to make a spelling mistake.

A.could have gained B.can have gained
C.must have gained D.must gain
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Tonyfullmarks,buthewassocarele