MODAL VERBS OF OBLIGATION

1. I ___________ study this weekend. It's my obligation as a student..

• study

• must

• mustn't

2. You _________ feed the animals in the zoo. It's forbidden!

• don't have to

• must

• mustn't

3. I _________ make my bed every morning. I ______ help my parents at home.

• must - must

• don't have to - should

• should - shouldn't

4. You _______ do exercise every day. It's good for you.

• have to

• should

• don't have to

5. You _______ listen to loud music. It's bad for your ears.

• mustn't

• should

• shouldn't

6. You _______ help me now. Dad help me this morning.

• mustn't

• shouldn't

• don't have to

7. They ____________ study harder if they want to pass their exams.

• have to

• don't have to

• should

8. You __________ use your mobile phone in class.

• should

• don't have to

• mustn't

9. She _______ wear a uniform at school. She can wear jeans.

• doesn't have to

• don't have to

• mustn't

10. You _______ eat fast food. It's bad for you.

• have to

• shouldn't

• mustn't