must I follow these rules?(做否定回答）

must I follow these rules?(做否定回答） must I follow the rules否定回答 students must follow school rules怎么回答 ( )(play) must follow the rules must i do the dishes now?做否定回答 Must I go home now ? 做否定回答 . I have to wash the diahes.(改为否定句） We can see these rules in are these oyanges?做否定回答 Are these your keys?做否定回答 做否定回答.Are these his books? Must I stay at home?否定回答（两种） Must I finish my work?做肯定回答和否定回答