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.