Must / mustn't

– Can I go for a walk with my friends?

– You ___ do your homework now!

– My stomach hurts!

– You ___ eat a lot of food today.

– Fred, play with your baby-sister, please.

– Mom, I can't. I ___ go to school right now.

– Let's have a party!

– I'm sorry, I ___ go home.

Your father is sleeping. You ___ listen to loud music.

You ___ use your phone during your lessons.

– ___ I come with you? – Sure, I need your help.

You ___ give sweets to your dog.

Your brother ___ miss classes.

– Can I go to the cinema with your friends?

– Yes, but you ___ talk to strangers.