Ответ:

Here are the corrected phrases with the appropriate quantifiers:

1. It's a very big city.

2. They are very dirty doors.

3. It is a really good photo.

4. It's a very old book.

5. They're quite new comics.

6. It's a brand new car.

7. It's a very dirty room.

8. They are quite expensive laptops.

9. They're very white T-shirts.