I have just completed a test which included the above.
I answered: Oyes tu (sorry, can't get accents to work), which was marked wrong.
Another question was: ¿..................... la chimenea? Two answers were given: Enciendes and Enciendes tu. This was marked nearly right.
Are the answers with 'tu' (or any other personal pronoun) not acceptable in Spanish? Is the only way to ask a question in Spanish to raise the tone at the end?
Look forward to your reply.