Every nation has its own laws. School has its own rules. Different school may have different rules. In my school, students are allowed to bring drinks to school. They can bring dictionaries to school,too. They can play basketball, run and do other exercise. Stuents mustn't bring mobile phones to school. They can't run in the hall way. They must come to school early so they aren't allowed to come late to school.They must get the ears pierced.