Choose the correct modal verb.

1. It's raining. You ... take an umbrella. 2. We ... hurry. We've got plenty of time. 3. ... you help me with this task? 4. I'm afraid I ... come to the party on Friday. 5. I ... go there at once. It's really very urgent. 6. I don't feel well today. ... I leave a bit earlier? 7. Schools ... teach children the difference between right and wrong. 8. I stayed at home yesterday because I ... help my father. 9. You ... use my dictionary as long as you like. 10. You ... eat more fruit and vegetables. 11. Kate became ill last night. We ... call a doctor. 12. A postman ... get up early every day.