Вставьте there is,there are ,are there или is there a bookcase in my room a wardrobe in your room? a tv and a video at the window? books on the bookshelf ? theree rooms in my flat armchairs in the living room

1).There is a bookcase in my room
2)Is there a wardrobe in your room?
3).Is there a TV and a video at the window?
4).Are there books on the bookshelf ?
5).There are three rooms in my flat
6) There are four armchairs in the living room