Where'd you take your class? I took mine at HCC and I used the 10th edition orange book.
Advice do not use EMTZONE (the online quizzes). They are very vague and I found some of the questions to be poorly written and misleading.
I didn't use any extra prep and I passed the test first time stopped at 70. Don't worry about that (question numbers, time left) though, it just makes you panic while you're taking the test.
If you don't want to spend crazy money since the textbook was so expensive, I'd advise you to do the quizzes at the back of each chapter and understand why. You should look through the powerpoints from your instructor (I had good ones at HCC) and perhaps old quizzes and tests. I also had to fill out the entire workbook for the course. It's busy work but it helps for memorization.
Everyone's right you should know the basics front and back. ABCs for all ages.
Goodluck!