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A. GRAMMAR TOPIC 1: MODAL VERBS - USED TO
Exercise 1: Complete the sentences with must (not) or (do not) have to (in the correct form).
Sometimes it's possible to use either; sometimes only have to is possible.
1. I have to go to the airport. I'm meeting someone.
2. It's too late. I must/ have to go now.
3. You
4. Jack left before the end of the meeting. He
5. I've already finished all my work, so I
6. Students
7. You really
8. I don't want anyone to know. You
9. When you come to London again, you
10. A person
lock the door when you go out. There have been a lot of break-ins recently.
go home early.
study tonight.
wear uniform when they go to school.
hurry up, Vicky. We don't want to be late.
tell anyone.
come and see us.
become rich and famous in order to live a successful life.
wear glasses since she was very young.
11. Julia wears glasses. She
12. I
13. Johnny! You
14. Caroline may
work late tomorrow. We are very busy at the office.
play with sharp knives.
go away next week.
work harder if you want to pass the examination.
15. You really
16. I
17. We couldn't repair the car ourselves. We
18. You really
19. Don't make so much noise. We
go to the doctor. I'm feeling much better.
take it to a garage.
make less noise. I'm trying to concentrate.
wake the baby.