The main purpose of these book series is to provide you an impressive and invaluable collection of TOEFL Grammar multiple-choice exercises with answers.<br />This book comprises different items and will take you on a beautiful journey towards improving your English for TOEFL exam.&nbsp;<br />There are three levels of difficulty in my &ldquo;TOEFL Grammar with Answer Key&rdquo; series: Beginner, Intermediate and Advanced. Choose the best that suits you and enhance your English knowledge.<br />This book deals with Advanced English level and is the third book of the series.<br />Please keep an eye on further releases.<br />Good luck!