This document provides example sentences using common modal verbs like MUST, MUSTN'T, SHOULD, SHOULDN'T, HAVE TO, and DON'T HAVE TO/DOESN'T HAVE TO. The sentences cover a range of situations involving obligations, prohibitions, recommendations, and permissions across contexts like work, health, school rules, and social etiquette. Completing the sentences requires understanding when to use each modal verb to convey necessity, prohibition, or suggestion as appropriate for the scenario described.

1. Complete the sentences with MUST, MUSTN’T, SHOULD, SHOULDN’T,
HAVE TO or DON’T HAVE TO/DOESN’T HAVE TO
1. Patrick _____ work every day. It´s his obligation as a father.
2. We _______ smoke in restaurants. It’s prohibited!
3. Children ________ help their parents with the house chores at home.
4. Victor ______ get up early on Sunday. It is his day off.
5. Charles has a headache. He ______ see the doctor.
6. Amanda ______ wear a uniform at school. She can wear jeans.
7. Lorena ______ eat fast food if she doesn’t want to have high cholesterol.
8. My husband and I _____ tell Jennifer’s secret to her parents.
9. I ______ tell the truth about my life if I don’t want to.
10. Katherine ______ get chemotherapies if she wants to beat cancer.
11. People _____ feed animals in the zoo. It’ not allowed.
12. You _____ quit drinking…. it’s making you sick.
13. Peter_____ use his cell phone in class. It´s against the rules.
14.Adriana ______ be rude to people when she disagrees on something.
GRAMMAR
MUST – SHOULD – HAVE TO