Modal

1.  You ___________ smoke at the street.

• can

• must

• mustn't

• have to

2. 2. Children ___________ wear uniform at school.

• must

• have to

• can

• should

3. 3. My brother ______ swim when he was five.

• can

• oughtn't to

• had better

• could

4. 4. Teachers is a challenging job because they _______________ be patient to teach students.

• have to

• must

• can

• has to

5. 5. You __________ have to pay to use the library. It's free.

• must

• don't

• didn't

• could

6. 6. You _____________ tell your mum the truth or your mum will be so angry.

• had better not

• had better

• ought not to

• have to

7. 7. Jim ____________ wear a helmet when he rides his bike.

• should

• don't have to

• must

• had better not

8. 8.  I think Dad __________ go and see a doctor. His cough is getting worse all the time.

• can

• ought to

• shouldn't

• has to

9. 9. Karl ____________ leave his bag there since someone might steal it.

• had to

• didn't have to

• must

• had better

10. 10. I ___________ pay for the tickets because I got them from Sam for free.

• didn't have to

• could

• shouldn't

• had better not