mustn't的意思不必须?还是 千万不要?要肯定的回答

mustn't的意思不必须?还是 千万不要?要肯定的回答 mustn't 的意思是必须不；一定不,John has gone to London.That man over there mustn't be him这句话对吗? 谁知道must做“必须”讲时 反义疑问句用needn't 还是mustn't我也以为是needn't但是学校给的答案怎么是mustn't呢?是不这个两个都可以用啊 情态动词must的问题He must be in the classroom这句话中的be可以省略吗?这句话中的must是“必须”的意思还是“肯定”的意思?还是牵强一点两者都有?mustn't是“不能”还是“一定不”的意思?还是两 we mustnˊt be late的反义疑问句?must not有一定不的意思吗? should的否定形式是什么啊是mustn't还是needn't啊?还是另有其他我记得和常规变法不太一样啊 mustn't它的中文意思 mustn't的意思有哪些? mustn t有哪几种意思 mustn't什么意思 To make our city more beautiful,rubbish mustn't be thrown into the river.为什么用的是mustn't be thrown,而不能用can't throw? cannot can't couldn't mustn't的问题1.cannot = mustn't 是不准?那can't呢?2.can是不能够,may是不可能 对不?3.cannot can't couldn't之间的不同 Be polite.You ____ talk to the old like thatA.couldn't B.mustn't为什么不选C啊,couldn't不是有不可以的意思吗! must not 的缩写是mustn’t还是musn’t? must的反义疑问句 是mustn't还是don't must的否定式是musn't还是mustn't 关于can't 和mustn't的选择1.---May I ask for a week's leave?----No,you ( ).We'll be very busy this week.答案是mustn't而不选can2.You ( ) not go now.You must stay here till 5 答案是can而不选must我觉得这两句意思差不多啊,所 mustn't的用法?