=>
III/
1. How far is it from your house to your school?
2. It is not very far to go to the railway station.
3. We must always obey the traffic rules for our safety.
4. Near our school there is a children crossing sign so you must cross the road there. 
5. My mother used to take me to school but now I cycle there.

IV/
1. Now there are more cars on the roads than there used to be.
2. My brother used to be a professor at Ha Noi University but now he has a job as an engineer at a big company.
3. Linh used to walk to school but now she cycles there.
4. My father used to swim in the pool near his house when he was a boy.
5. There used to be many green trees in front of my house but now it is a big car park.
6. I used to stay up late to watch football matches last year, but now I don't.

7. Linda used to live with her parent.
8. In the past my hair used to be much shorter than that now.
9. He used to be a poor man, but becomes a rich businessman.
10. Did you use to go to the beach when you lived in Nha Trang?
11. Mr and Mrs.Trang are travelling to Ha Noi by plane now.
12. Van used to have a motorbike, but he doens't have any more.
13. My father usually drives to work.
14. This part of the city didn't use to have traffic jams very often.
15. I used to go to school on foot when I was young.

3:

1. How far is it from your house to your school?

2. It is not very far to go to railway station

3. we must alway obey the traffic rules for our safety

4. there is a children crossing near our school so you must cross the road there

5. my mother used to take me to school but now i cycle

4:

1. now there are many traffic accidents than before

2.My brother used to be a professor at Ha Noi University some years ago, but now he has a job as an enginneer at a big company

3. Linh used to walk to school some years ago but now she cycles there.

4. My father used to swim in the pool near his house when he was a boy.

5. There used to be many many green trees in front of my house but now it is a big car park.

6. I used to stay up late to watch football matches last year

7. Linda used to live with her parent

8. In the past my hair didn't use to be as long as it is now

9. He used to be a poor man 

10. Did you use to go to the beach when you lived in Nha Trang? 

11. Mr and Mrs Smith are travelling to Ha Noi by air now. 

12. Van used to have a motorbike

13. My father usually drives to work

14. This part of city didn't use to have traffic jams

15. I used to go to school on foot when I was young

bạn lần sau chụp ảnh thẳng lên nhé. Chụp này mình ngồi máy tính nhìn hoa cả mắt^^