Fill in the sentences with have to/don't have to, has to/doesn't have to.
1) Mary can't go to the cinema. She...... look after her sistertonight.2) My parents can't go to Italy. They.........work this summer.3) My friends....... get up early tomorrow because it's Sunday.4) Caroline...... clean her car today because it's raining.5) Children........ work. First they have to go to school.6) Sorry, I can't come tomorrow. I...... go to the doctor's.7) Teresa can't see very well so she........ wear glasses.8) You.......do the ironing. I'll do it for you. I love ironing.9) That woman.........carry all those bags. Her husband canhelp her.10) My father is an import-export manager. He...........travel a lot.