Have to / Must (all forms)

I'm sorry, I can't come to the party. I ______ work on Saturday.

My car is broken, so I ______ take the bus to school.

My brother is not feeling well, so he ______ go to the doctor.

She is on a diet, so she ______ eat healty food.

We have a lot of food in the fridge, so we ______ go to the supermarket.

Tomorrow is a public holiday, so we ______ go to work.

It's your birthday! You ______ do any chores today.

My little sister ______ go to bed early on Saturdays. She can stay up late.

I heard he is very rich, so he ______ save money for his future, if he doesn't want to.

She is very talented, so she ______ sing in the choir if she doesn't want to.