The key answer of exercise 2

a)

1. I have a blue car.
2. It's a very expensive camera.
3. They're very good children.
4. That's a cheap phone.
5. My house has a red door.
6. It's a beautiful day.
7. I have a new tablet.
8. This is a nice watch.

b)

1. very slow car
2. very easy exercises
3. very long film
4. green windows
5. very big umbrellas
6. old phone
7. nice people
8. Spanish dictionary