Hi Suzanna,
As AkshdeepS has pointed out, you can 'Google' any of the Official CAT questions that you're interested in - and there's a pretty good chance that you'll find a discussion on each of those questions already posted at GMATClub. Beyond that, if you're looking for any additional advice for your studies, it would help if you could provide a bit more information on how you've been studying and your goals:
Studies:
1) How long have you studied?
2) What study materials have you used so far?
3) How have you scored on EACH of your CATs (including the Quant and Verbal Scaled Scores for EACH)?
Goals:
4) What is your goal score?
5) When are you planning to take the GMAT?
6) When are you planning to apply to Business School?
7) What Schools are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich