Lessons start at 8.10, so we must be at school before eight o'clock. We mustn’t be late for class.
We have to wear a uniform. We don’t have to wear our regular clothes, but we mustn’t wear jewellery or make-up. During the break, we can all go out of the classroom, but we must stay inside. We can play ball games in the school yard, talk with our friends, but we mustn’t go out of the school without permission from our teacher.