Here are a few resources to help you study. You should also study from your homework and your book, but these will help. On at least one of these, try to work through the problems as though you were taking a test, i.e. don't use your book or notes and try to finish within a preset time limit.

Exam 2 Review and Solutions. This is a bit hard, but you should be able to finish it in just over three hours.
Here is a corrected solution to number 11, along with another way of doing the problem. Both of the ways I've done it here are at least slightly different than the way I did it in the review session.
Another Review. There are a few important types of integrals on this review that I did not include in the review above. Omit 8,9, and 12. This should take you just under two hours.
Sample Test and Solutions. Omit 1, 13, 14, 15, 16. That's only eleven problems, so it should only take you about an hour and a half.