Complete the sentences with the proper modal verb.

1. Janet: Can I smoke in the house?

Mrs Jones: Well, you can smoke in your room but you can't smoke in the kitchen.

2. Janet: … I make a call?

Mrs Jones: Yes, you can, but you have to pay for the calls you make.

3. Janet: … I keep a cat?

Mrs Jones: No, I'm sorry you can't. I don't want animals in the house.

b) Ability

1.George has traveled a lot. He … speak four languages. 2.Tom … drive but he hasn't got a car. 3.He can't play tennis very well now but he … play quite well when he was younger. 4.She can't run very fast now but when she was at school she … run faster than anyone else. 5.I looked very carefully and I … see a figure in the distance.

3.21 Obligation and advice. Choose the best for these sentences.

1.It's very early. We must / don't have to leave now. 2.We can go to the cinema tonight. I must / don't have to work. 3.You look tired. You should / mustn't have a holiday. 4.That's a great film. You don't have to / should see it. 5.His leg is broken. We should / must phone the doctor. 6.These windows are dirty. You must / should clean them more often. 7.Peter drives too fast. He should / must drive more carefully. 8.He owes you a lot of money. You shouldn't / mustn't lend him any more. 9.I'm sorry I couldn't come yesterday. I should / had to work late. 10.Many children in Britain have to / should wear uniforms when they go to school.

3.22 Say what we mustandmustn't do at table.

1.We … speak with our mouth full. 2.We … put the table napkin on our knees. 3.We … reach across for the salt.4.We … use the fork and knife properly. 5.We … put our elbows on the table. 6.We … wave the knife or the fork in the air. 7.We … lift a soup bowl to our mouth. 8.We … eat noiselessly.

3.23 Choose the correct preposition.

1.Hurry up! Our bus leaves on/in an hour. 2.In the picture Jerry is sitting among/between Alex and Ted. 3.The postman is in/at the door. He's got some letters for us. 4.Father goes to work in/by car every morning. 5.I'm meeting Peter for coffee on/at Tuesday. 6.Be careful as you walk across/along the street. 7.I go to the University on/by foot.