阅读短文，判断下列句子正误。

    There are some rules in our school. We must wear school uniforms in the school every day. We must wear sneakers in PE classes. Boys can' t have long hair. We shouldn't be late for school.

    We shouldn't talk in the school library. If we have any questions in class, we should put up our hands first. We should stand up when we answer teachers' questions. We mustn't fight against others. We should always obey the rules(遵守规则).