The context of the following conversation is After studying for hours, Skylar finally got her history study guide down.:
Skylar says I can't wait to be done with this history test..
The friend responds How long have you been studying for?.
Skylar responds Six hours so far..
The friend responds Wow, I bet you'll ace the test..
Skylar responds I better, I think I've memorized the study guide completely by now..
The friend responds Well, good luck with the test..