Must-Mustn't

You ............make noise during the lesson.

You ..............run in the class.

You..............be rude towards your friends.

You..............obey the school rules.

You............chew gum during the class.

You................listen to your teacher carefully.

You.............cheat in the exam.

You............be quite in the library.

You ............eat and drink during the lessons.

You..............play football in the class.