<p>I really need some help with grammer, especially idioms and verb tense, is there any book that focus on this part of the test?</p>
<p>also, this may sound crazy, is there a book that provides an explanation for EVERY problem in the BB? </p>
<p>I thought about maximum SAT but i'm not sure if it works out every single problem. </p>
<p>thx every one</p>