1、Students are supposed to obey the school rules.2、Students aren't supposed to break the classroom discipline.3、Students are supposed to respect teachers.4、Students aren't supposed to be late for school.5、Students are supposed to unite their classmates.6、Students aren't supposed to pollute the shcool environment.7、Students are supposed to finish homework on time.8、Students aren't supposed to play truant freely.9、Students are supposed to help one another.10、Students aren't supposed to cheat in the exams.