Нужна помощь!!We are doing our homework in the room now(-,+?,-?,?or,what,when,where,who)

We are doing our homework in the room now.
We are not doing our homework in the room now.
Are we doing our homework in the room now?
We are doing our homework in the room now, aren't we?
Are we doing our homework or exercises in the room now?
Who is doing our homework in the room now?
What are we doing in the room now?
Where are we doing our homework?
When are we doing our homework in the room?