Whose book is this?
This is my book. (It's mine.)
Whose book is this?
This is my book. (It's mine.)
Whose eraser is this?
This is my eraser. (It's mine.)
Whose eraser is this?
This is my eraser. (It's mine.)
Whose pencil is this?
This is my pencil. (It's mine.)
Whose ruler is this?
This is my ruler. (It's mine.)
Whose bag is this?
This is my bag/backpack. (It's mine.)
Whose pencil is this?
This is my pencil. (It's mine.)
Whose ruler is this?
This is my ruler. (It's mine.)