Singular:
There is a cooker near the fridge.
Is there a TV-set above the coffee-table?
There isnt an armchair on the carpet.
There is a mirror above the bath.
There is a book in a bookcase.
Plural:
There are apples in a fridge.
Are there book in your schoolbag?
There arent any books on the table.
There are books in a library.
There are bananas in the shop.