1. more cars on the road than before
2. to be a professor at Ha Noi University some years ago, but now he is an engineer .
3. to walk to school some years ago but now she cycles there.
4. to swim in the pool near his house when he was a boy.
5. to be many green trees in front of my house but now it is big car park
6. to stay up late to watch football matches last year, but now I don't.
7. used to live with her parents, but now she doesn't any more.
8. used to be much shorter than now.
9. to be a poor man, but now he becomes a rich businnessman.
10. to go the beach, when you lived in Nha Trang?
11. Mr and Mrs Smith are travelling to Ha Noi by plane now.
12. Van used to have a motorbike once, but he doesn't any more.
13. My father usually drives to work.
14. This part of the city didn't use to have traffic jam very often.
15. I used to go to school on foot when I was young
