——Look,the light in the teacher's office is still on.Miss Li is working there.——Look,the light in the teacher's office is still on.Miss Li is working there.——It________ be Miss Li.She's gone to England for a short visit.A.can't B.mustn't

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——Look,the light in the teacher's office is still on.Miss Li is working there.
——Look,the light in the teacher's office is still on.Miss Li is working there.
——It________ be Miss Li.She's gone to England for a short visit.
A.can't B.mustn't C.needn't D.may not

A can't不可能 mustn't禁止 needn‘t不需要 may mot也许不

A.表示不可能

A