Complete the sentences using 'Is there', 'Are there', 'There is(n't)', 'There aren't'.

1. There is a carpet in the room. 2. There is a window in the room. 3. There are two tables in the room. 4. There are three armchairs in the room. 5. There is a sofa in the room. 6. There is a lamp in the room. 7. There isn't a bookcase in the room. 8. There are paintings in the room.