Must - Mustn´t

People _______ use their mobile phones on planes.

You ____________ open this door!! There are dangerous creatures there....

You ______ visit the dentist once a year.

To be a doctor you ________ study a lot!

You _______ get on the train without a ticket. Go to the ticket machine and buy one.

The vet said she _______ take some vitamins. She is too weak

In football, you ______ touch the ball with your hands.

You _______ finish your project for science by Monday. That's the last day to hand in.

You _________ throw litter in the park. Take it home.

When you see this light you ______ cross.

You ________ eat too much junk food. It is not good for your body.

Cinderella, you ______ be at home before 12 o´clock.

You _______ travel by car without seatbelt.