Complete with ‘must’ or ‘mustn’t’ Ex 3 p 35 by O. Karpiuk

You ... do your homework every day.

You ... be rude to your parents.

You ... worry about the exam.

We ... buy some flowers for the party.

You ... drink too much coffee.

You ... clean your teeth every day.

You ... drive fast.

You ... drink a cup of milk every day.

You ... exercise three times a week.

You ... eat too many sweets.

11. We ... skip classes.