modals of obligation and prohibition

If you don't want your dessert, you ___ eat it.

You ___ run at the swimming pool.

She ___ to register for classes.

Doctors ___ wear a mask when they perform surgery.

I ___ renew my driver's licence before it expires.

David ___ watch his little sister when his parents go out.

The teacher said we ___ do the homework if we don't have time.

You ___ tell the doctor the truth or she won't be able to help you.

Does Henry have to give a presentation at the meeting?

You ___ smoke here. There is a 'No Smokin' sign by the door.