Choose between “whose” and “who”:

___________ backpack is this? – It’s Dona’s.

___________ gave you this wonderful blouse? – My mom did.

___________ house are we going to visit first? – We’re going to Mario’s.

___________ name was mentioned in the document? – Yours and mine.

___________ will pick Carol after school? – Dad will.

___________ T-shirt is that on the floor? – It’s Rick’s, Mom. You know he isn’t neat.