Whose calculator is that?
It's her calculator.
Whose workbook is that? (my)
It's my umbrella.
Whose umbrella is this? (Nikki)
This is her umbrella.
Whose pencil case is this? (He)
It's his pencil case.
Whose cap is that? (he)
It's his cap.
Whose calculator is that? (your)
It's your calculator.
Whose passport is this? (my)
It's my passport.
Whose lunchbox is that? (her)
It's her lunchbox.
Whose wallet is this? (he)
It's his wallet.
Whose backpack is that? (my)
It's my backpack.
Whose purse is that? (she)
It's her purse.
Whose pen is that? (I)
It's my pen.
Whose ruler is that? (you)
It's your ruler.
