1. Complete the sentences. Use there is or there are.

1. There are three chairs in the room.
2. There is a red carpet on the floor.
3. There are some armchairs next to the table.
4. There is a big tree in the yard.
5. There are some books in the bag.
6. There are two balls in the box.
7. There is a mirror in the bedroom.
8. There are some pens on the desk.
9. There are two pictures on the wall.

**Объяснение:**
* **There is** используется с единственным числом.
* **There are** используется с множественным числом.