怎么用英语写班级公约？

例如：上课禁止讲话
保持教室卫生
不要在教室吃东西

怎么用英语表达？
越多越好

麻烦确定是正确的再发

Keep quiet in the class!上课禁止讲话
Keep our classroom clean!保持教室卫生
Eating or drinking is not allowed in the classroom!不要在教室吃东西

class rules1.don't run in the hallway.2.don't arrive late for class.3.don't eat in the class.4.don't listen to music in the classrooms or the hallwway.5.don't fight with classmates or teaches.6.must clean the classroom every day.满意请把分给我，请勿复制，违者必究￥！

请勿复制.6.5;t listen to music in the classrooms or the hallwway.3.2.Don't fight with classmates or teaches;t eat in the class.Don'.满意请把分给我;t arrive late for class.Must clean the classroom every day.Don'Class Rules1;t run in the hallway.Don'.4.Don'，违者必究￥