1. Whose is this tea set?(Mum)- it's mum's tea set
whose is this room?(my sister) -it's my sister's room
whose is this computer?(Dad)-it's Dad's computer
whose is this rubber? (Ann) -it's Ann's rubber
whos is this school bag?( Tom) -it's Tom's bag
Whose is that tree house?(Larry and Lulu)-it's Larry and Lulu's tree house