在句子中如何使用couldn't,mustn't,can't,needn't?答:NOT STAY THAT LONG,,,mustn't, 含有"不被允许"的强制暗意. 如: YOU MUSTN'T GO THERE ALONE.can't, 不能,无法做到... HE CAN'T TRANSLATE THE ENTIRE BOOK INTO ENGLISH IN 2 DAYS.needn't 指不需要,不必要, 如: YOU NEEDN'T TO SAY SO,,, THEY UNDERSTAND THE SITUATION THEN....
must,need,mustn't,needn't的用法?答:I must go to see a doctor.我得看医生去。need可以对MUST引导的一般疑问句作否定回答。Really? Must I go with you?是吗?要我和你一起去吗?No, you needn't.不,没必要。must的否定式表示不准,不得等禁止的意思,或表示不可,不能,一定不要等劝告的意思。Ok, then, you mustn't forget...