`text{1.}` The car was too expensive for her to buy it.

`text{2.}` Do you mind helping me to put the chair away ?

`text{3.}` You shouldn't sweep the house on the first day of Tet. 

`text{4.}` Do we have to finish the work today ?

`text{5.}` I'm interested in learning about other cultures.

`text{6.}` If he doesn't phone his wife immediately, he won't get any information.

`text{7.}`It isn't easy to leave here after such a long time.

`text{8.}` Why we don't get together and talk about our presentation before we do it in class.

1. She couldn't afford to buy the car.

The car is too expensive for her to buy.

2. I would like you to help me to put the chair away.

Do you mind  helping me put the chair away ?

3. If I were you, wouldn't sweep the house on the first day of Tet. 

You shouldn't sweep the house on the first day of Tet. 

4. Is it really necessary for us to finish the work today?

Do we have to finish the work today?

5. Learning about other cultures is one of my interests.

I'm interested in learning about other cultures.

6. Unless he phones her immediately, he won't get any information.

If he doesn't phone his wife immediately, he won't get any information.

7. It's very difficult to leave here after such a long time.

It isn't easy to leave here after such a long time.

8. Let's get together and talk about our presentation before we do it in class.

Why we don't get together and talk about our presentation before we do it in class.