Use must or mustn’t


6. You _________ smoke in public places.
7. You _________ turn off your cell phone when you are in a bank.
8. You _________ get good grades at school.
9. We _________ leave right now. We are going to be late for school.
10. You ________ go out without your coat. It´s freezing outside.

Ayuden porfavor❤️Gracias ​