Pratt anyone?
You could purchase the AFE "Questions and Answers Simplifier" which has several mock question papers per subject. They papers are (I'm reliably informed) laid out very similarly to the tests you'll take, and have the same structure and style.
The book is designed to complement the AFE books by Jeremy Pratt. The questions in those text books at the end of each section are designed to test your knowledge, not prepare you for the test.