A.
2) There are four chairs in the living room.
3) There are two bedrooms in my flat.
4) There isn't a sofa in my living room.
5) There is a bathroom upstairs.
6) There are not any shelves in the bedroom.
B.
1) How many chairs ARE there in the living room?
2) IS there a desk in your living room?
3) How many bedrooms ARE there in your flat?
4) IS there a study?
5) IS there a separate dining room?
6) How many bathrooms ARE there in your flat?