1. I can't come to your party.
2. Can you play basketball tonight?
3. Can you use a computer?
4. You can't borrow my bike.
5. We can't answer this question.
6. I can't help you.
7. I can't play this game.
8. Can you help me?

Ex. 2 page 211

1. Can I use your umbrella, Janet? 4
2. Can you drive? 1
3. She can speak four languages. 1
4. Can you help me wash the car? 4
5. I can do my Latin homework by myself. 1
6. If you see Anna, can you tell her I won't be in London next week? 4
7. Can you stop all that noise, please? I'm trying to work. 4
8. You can get stamps from the local newsagents. 2
9. Can you read that sign from this distance? 1
10. You can park round the corner. 3
11. You can't smoke at school. 3

Ex. 3 page 211

1. My train leaves at 12.15. I don't have to get up early.
2. You mustn't look through my wardrobe ever again!
3. I can hear you very well. You don't have to shout.
4. The doctor said I mustn't drink alcohol.
5. You mustn't tell anybody. Keep it to yourself.
6. You mustn't drop litter in the street.
7. The French test has been put off to next week. We don't have to prepare for it.
8. Just write a paragraph. It doesn't have to be very long.
9. Justin knows we'll be late. You don't have to phone him.
10. Visitors to the zoo mustn't feed the animals.

Ex. 4 page 212
Cycling is becoming more and more popular as a healthy way of getting about in cities, but as a result, cycle theft is also on the rise. So what can you do to make sure your bike is still there when you need it? Generally speaking, you need to make it harder to steal. First you should always lock your cycle securely. You might think that a simple chain is enough, but thieves can easily cut through these, so get a strong cycle lock. Some bike owners even remove parts of the bike so it cannot be ridden. Your bike shouldn't where it is easy to steal, so try to leave it inside a building. If the worst happen and your bike is stolen, it will be easier to recover if you have a record of the number, this is bound to be on the frame of the bike, and a photo of the bike.

Ex. 5 page 212

1. Sorry I'm late. I had to go to the library.
2. My brother might walk before he started talking.
3. You have worked very hard. You must be tired.
4. George didn't have to wait long for the bus.
5. Don't wait for me. I may be late.
6. Helen couldn't do her homework because she was ill.
7. This bus might go to the centre. Shall I ask to the driver?
8. Sam dropped the three glasses, but was able to catch one!

Ex. 6 page 212

1. You ought to see a dentist.
2. We don't have to go to school tomorrow.
3. He can't be John, because he's in Paris.
4. Ann may be at home.
5. You had better wear a warm coat today.
6. I may be late.
7. You can't leave your bike here.

Ex. 7 page 213
For Sam Allan, things started to go wrong on the mountain when he wandered away from his school group and went along a path on his own. "Everyone else was sitting around eating, so I decided to do some exploring." Sam now realizes it was a foolish thing to do. "I heard our teacher telling us not to go off alone, but I didn't think I would go very far". Unlucky for Sam, after he had been walking for a few minutes, he got lost in the mist and rain. "I tried to go back, but there were several paths and I couldn't remember which one I had come up". And then I slipped on the rocks and hurt my leg. I started shouting, but the wind must have carried my voice away." Meanwhile, further down the mountain, the school group had realised that Sam was missing, and phoned for help. Teacher Fiona Small had called Mountain Rescue on her mobile phone and three hours later the rescue team found a very wet Sam sheltering under a tree. "He was wearing a bright yellow anorak, so he was easy to find", said a spokesperson for the rescue service. "It shows the importance of following the rules on trips of this kind. Sam could easily have been injured or even killed. If you walk in the mountains, you have to obey the safety rules".

Ex. 8 page 213

1. I have been living here since 2005.
2. My bike must have been stolen.
3. Are you doing anything on Friday?
4. This is the first time I have gone to London.
5. Jack's teacher made him apologise before he left.
6. Maria hadn't finished the test when I left.
7. I mustn't have left my wallet on the train.