I found this site, lumoslearning, and it seems to be a great (and free) resource for PARCC sample test questions. They are all standards-based. Questions are multiple choice, and an explanation is given for both correct AND incorrect answers. It will also tell you the specific standard that the question is aligned to. I thought this might be useful to get some more practice questions into your routine. If anyone has used this site before, I’d love to hear any feedback you might have.