excuse me ,sir.you --open the door before the train stops .

学习 时间:2026-04-02 21:01:03 阅读:1541
excuse me ,sir.you __open the door before the train stops .A.mustn't B.needn't C.may not D.don't have to

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2026-04-02 21:01:03

A
仍然是严厉禁止,语气严厉
MUSN'T 表示严厉禁止,但是不能表推测