Should I take the ACT after the SAT?

Test Preparation
21

<p>Nevermind I have a different question.
Is this book worth it? I have the grammar guide along with the 8 practice tests already.
<a href=“http://www.amazon.com/Sentence-Completion-Workbook-Erica-Meltzer/dp/149218005X/ref=cm_cr_pr_product_top”>http://www.amazon.com/Sentence-Completion-Workbook-Erica-Meltzer/dp/149218005X/ref=cm_cr_pr_product_top&lt;/a&gt;&lt;/p&gt;