用must,mustn't造句1.do your homework before you go to bed 2.listen carefully in class 3.drive fast/on the street 4.talk/in
问题描述：
用must,mustn't造句1.do your homework before you go to bed 2.listen carefully in class 3.drive fast/on the street 4.talk/in class
class rules 的适合规则有什么?
sports games rules 的规则有什么?
答
1.you must do your homework before you go to bed.2.you must listen carefully in class.3.you mustn't drive fast on the street.4.you mustn't talk in class.