What are these?
stairs
What's this?
fireplace
What's this?
cooker
What's this?
air conditioner
air condiitoning
What's this?
living room
What's this?
cupboard
What's this?
mirror
What's this?
lamp
What's this?
balcony
What are these?
shelves (plural)
shelf (singular)
What's this?
garage
What's this?
hall
What's this?
washing machine
What's this?
microwave
What's this?
dining room
What's this?
wardrobe