用MUSTN'T的時候,是表示已經(jīng)肯定了某事,這道題應(yīng)該要選A的,因為后面那句話已經(jīng)說了海倫已經(jīng)去北京.
而如果用CAN'T的話,有帶有可能,猜測的意思,帶有不確定因素.
Iisten!Helen is singing in the next room.It ( ) be Helen.She has gone to Beijing.A.mustn't B.can't
Iisten!Helen is singing in the next room.It ( ) be Helen.She has gone to Beijing.A.mustn't B.can't
請說說musn't與can't的區(qū)別和用法
請說說musn't與can't的區(qū)別和用法
英語人氣：561 ℃時間：2019-08-18 22:34:41
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