Buy the book! It's $40 but if you study it (like I did) you'll do great. I got in the 97% percentile - dont think I would have made such a good grade w/o the book.
Also, at TCC - be prepared for an essay question as well..we got to pick from two: I chose: Is health care a right or a priveledge and why? Cant remember what the other one was. They just want to make sure you can write proficiently. Also, there was a trick question: If your ship wrecked on a deserted island and you only had the things listed - list the items in order of importance. (Sunglasses, san tan lotion, 2 L bottle of water, umbrella, first aid kit...etc.)
Best of luck to you!