SAT Direct Hits!?

<p>Hi Everyone!
I have the Direct Hits 5th edition first book! I heard that there are two versions. Do I need to buy the second one? Or will the book I have now be enough to get at least 70%+ on the Sentence Completion??</p>

<p>I have both books and I recommend to get both books. Book 1 is for level 1-3 words while book 2 is for 4-5 words.</p>