<p>i know threads for this have probably been created...</p>
<p>which practice books give you tests that are somewhat similar to the real thing in difficulty?</p>
<p>I have princeton review. are PR's tests similar?</p>
<p>Yeah, I liked PR too :]</p>
<p>what do you guys think of the sparknotes tests? I thought they were a little bit harder than the real thing for chemistry.</p>