Must Mustn't

You ______ take photos in the museum.

You _____ be quiet at the library.

You _____ eat before swimming.

You _________feed animals in the zoo.

You ___ listen to the teacher.

I _____ go to school.

You _____ use you phone at the cinema.

You ____ do your homework.

You ____ turn off you phone at the theatre.

You _____ be late for class.

You ____ call your friend. You always call him at this time. He's waiting.

You _____ wear a kneepads and a helmet when you go skateboarding.