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He Shanghai, for I saw him talking with the headmaster a moment ago. A. must hav

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He Shanghai, for I saw him talking with the headmaster a moment ago. A. must hav

 He_______ Shanghai, for I saw him talking with the headmaster a moment ago.

A. must havegone to                B.can’t have gone to

C. mustn’t havebeen to                D.can’t have been to

 

试题答案

【答案】

 D

can’t have done表示对过去的行为动作的否定,从上文来看“根据我所了解的情况,他们不可能这个假期很快乐”,A项表示“可能已经,该已”,B项表示“过去该做而未做”,C项表示“本来不需做而实际上做了”。