Whose pencil is this? It's ____ pencil.
her
Whose book is this? It's ____ book.
his
Whose classroom is this? It's _____ classroom.
their
Whose pen is this?
It's his pen.
Whose coat is this?
It's her coat.
Whose bag is this? It's ____ bag.
his
Whose bag is this?
It's her bag.
Whose bag is this?
It's his bag.
Whose book is this?
It's his book.
Whose bag is this?
It's her bag.
Whose desk is this? It's ____ desk.
her
Whose notebook is this? It's ____ notebook.
her
Whose classroom is this?
It's their classroom/