mustn't的用法
问题描述:
mustn't的用法
答
mustn't不准/禁止
用法 :1.情态动词,后接原形动词.如:You mustn't be late for school (后面的be是原形词)2.作May 开头的问句的否定回答.如:May I watch Tv now?No,you mustn't