Modal verbs

They ___ do their homework today because it is a holiday at the school.

Kendra ___ finish her homework on time, or she can't go outside to play with her friends.

Teresa ___ believe her eyes. She saw a man beating his wife on the street!

You ___ called me first. I would have picked you up from the auto repair garage.

Do you ___ clean the house every day or every week?

I ___ go to see the doctor last week because I was very ill.