--Who is making much noise? ---It ____ be Timmy. He is sleeping now.
Kate’s room isn’t_______, her books are everywhere.
Tom and I _______ good friends . He _______ twelve.
—Is _____ your backpack?--- No, _____ isn’t. It’s ______ backpack.
---Where are my rulers? ----____________
What color is an orange? It’s ______.