---_________________---I have a headache.
—Where is my schoolbag, mom? —It’s _______ your room.
—What’s your favorite ________? —It’s science.
—______ your brother ______ a basketball? —Yes, he does.
—I can’t find my notebook, mom. _______ is it? —Peter, it’s under the chair.
—Is this ________ key, Tom? —No, that one is ________.