Раскройте скобки, поставив модальный глагол в нужную форму. 1. i’m sure she (can) play the piano. 2. (may) i come in? 3. you are so tired. you (should) go to sleep. 4. she (must) take three pills a day. 5. unfortunately, we (must) stay at home tomorrow. 6. when i was a child, i (can) swim very fast. 7. yesterday we (must) be at the conference but we (can) come. 8. my daddy said that i (may) go for a walk. 9. i hope next summer i (can) visit london. 10. (can) i help you?

1 Where do we see people walking and vehicles driving?
2 The vehicles are: trams, buses, trolley-buses, taxis and motor-cars, motor-cycles, motor-scooters and bicycles, aren't they?
3 Where are there traffic lights?
4 When are the street lights switched on and off?
5 When does the traffic stop?
6 Do the vehicles drive on when the green or red light is switched on?
7 Along the streets we also see bus, trolley-bus and tram stops, don't we?
8 Where do people get on and off public transport?
9 Are there Tube stations in the streets?
10 Where are there subways for pedestrians and flyovers for vehicles?
11 Where do vehicles drive on the left?
12 In Ukraine the traffic drives on the right, doesn't it?
13 How do we travel from one place to another outside the towns?

4. Ann was playing the piano while Tom was painting a picture.5. We saw an accident while we  were waiting for the bus.6. She was working quietly at her desk when suddenly the door opened and her daughter ran in.7. While she was preparing lunch, she cut her finger.8. We met while we were living in Italy.9. Which countries did they visit while they were travelling round the world?10. Were you working in the garden when I came home?11. А strange man walked into the room. He wore red trousers and a pink shirt.12. Didn't you meet your wife while you were working in France?13. I saw you in the park yesterday. You were sitting on a bench.14. They were living in Canada when they met each other.15. While I was listening to music, my brother was doing his homework.16. What were you writing) when your computer crashed?17. As he passed the bank, a man in a mask knocked him onto the ground.18. Why (didn't they visit me while they were staying in London?19. Jack was driving home from work when he saw the accident.20. Tom arrived while the children were having their bath.