One thing that your instructor should have explained is never to use aileron input in a stall - as it can worsen the stall. It's very possible that if you bank left and add right aileron to counteract it, you'll actually end up banking left even morehttp://www.boldmethod.com/learn-to-fly/ ... n-a-stall/
So you're recovering from the stall, then rolling level - you dont want to be using ailerons on a stalled wing, so get out of the stall first.
In your test you'll probably be asked to do 3 stalls
1 - Fully developed stall in the clean configuration. This is to test that you can properly recognize and react to the symptoms of the stall. Sometimes you'll find a wing starts to drop when you do this, you can counteract with rudder if you can but its not essential as it's easy enough to roll level once you've pitched down and added power
2 - Recovery at the first sign (eg stall warner) on the base to final turn configuration. This is to check that you don't try and roll the wings level during the stall and that you can properly climb away while putting the flaps away
3 - Recovery at the first sign of a stall on the final approach config (with drag flaps). This is mainly to check that you're not going to attempt to climb with full flaps deployed.