There is/there are посчитайте пожалуста

Put the words in the correct order:

1)  There is a computer on the desk.

2)  There are paintings in the living room.

3)  Is there a lamp in the bedroom?

4)  There aren't armchairs in the hall.

5)  Are there three windows in the bathroom?

6)  There is a carpet on the floor.

7)  There are books in the bookcase.