1. There did not use to be many cars on the road before.
Now there are more cars on the road than before.
2. My brother was a professor at Ha Noi University some years ago, but now he has a job as
an enginneer at a big company.
My brother used to be a professor at Ha Noi University some years ago, but now he is
an engineer.
3. Linh walked to school some years ago but now she cycles there.
Linh used to walk to school some years ago but now she cycles there.
4. My father swam in the pool near his house when he was a boy.
My father used to swim in the pool near his house when he was a boy.
5. There are many green trees in front of my house but now it is a big car park.
There used to be many green trees in front of my house but now it is a big car park.
6. I usually stayed up late to watch football matches last year, but now I don’t.
I used to stay up late to watch football matches last year, but now I don't.
7. Linda doesn’t live with her parent any more.
Linda used to live with her parents, but now she doesn't any more.

cảm ơn, vote 5* và cho mk câu trả lời hay nhất nha bn=))

IV/

1.Now there are many cars on the road.

2.My brother used to be a professor at Ha Noi University some years ago,but now.....(chép hết vế sau).

3.Linh used to walk  to school some years ago,but now.......(chép hết vế sau).

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 parents, but now she doesn't any more.

Chúc bạn học tốt ^_^!!!
(Nếu thấy hay hãy vote 5*,cảm ơn và bình chọn là câu trả lời hay nhất để mik có động lực giải tiếp các BT khác nhé!)