whose frisby is

whose frisby is please throw______her frisby(she) Whose book is this? Whose ruler is this? Whose bike is it? “Whose fork is that whose is this book? “Whose room is this? Whose it is? whose shirt is that Whose hat is this? Whose jacket is it? whose coat it is? whose hat is it whose bird is that? Whose is the shirt?. whose girl is Who is whose whom?