1. There is a book on the table.
2. There are books on the table.
3. There is a beautiful building in the centre of the city.
4. There are beautiful buildings in the centre of the city.
5. There is a black dog in the yard.
6. There are black dogs in the yard.
7. There is a chair at the table.
8. There are chairs at the table.
9. There is a boy in the street.
10. There are boys in the street.
11. There is a child in the room.
12. There are children in the room.
13. There is a flower in the vase.
14. There are flowers in the vase.
15. There is a woman in my office.
16. There are women in our office.
