Modal verbs: can, may, must

1. Complete the sentences using can, could, be able to

1. John has traveled a lot. He can speak four languages.

2. I haven’t been able to sleep very well lately.

3. She can drive, but she hasn’t got a car.

4. I can’t see you on Friday, but I will be able to meet you on Saturday.

5. You look tired. – Yes, I couldn’t sleep last night.

6. I was feeling sick yesterday. I couldn’t eat anything.

7. They didn’t want to come with us, but we can persuade them.

2. Use may or might

1. I was surprised, that Sarah wasn’t at the meeting.- She might not have known about it.

2. He may be in the office.

3. Ask Ann, she may know.

4. I haven’t decided where I am going for holidays. I may go to England.

5. Take the umbrella. It might rain later.

3. Use must, mustn’t, have to, don’t/doesn’t have to

1. I promised I would be on time. I mustn’t be late.

2. I’m not working tomorrow, so I don’t have to get up early.

3. What do I must do to get a driving license?

4. I haven’t phoned Ann for ages, I must phone her tonight.

5. I don’t want anyone to know. You mustn’t tell anyone.

6. He doesn’t have to wear a suit to work, but he usually does.

7. We haven’t got much time. We must hurry.

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