听短文，写出所缺部分。

    Good morning!I'm Jim．I'm years old，and I'm a student in a middle school．There are many roles in my school．We have to get to school at. We can't be late for class.It's very important．We can'tin class,either．We can't write on the desks．And we can't bringto school．At 12：00，we have to eat lunch at school．We must be quiet in the library．And we have toafter school every day．