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