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Title: Excellent book, but could be a waste of your money!!!
Review: This is an excellent book ... by itself. The quality of the lessons, appendices and the rest of the material is great. The section on usage is very good, too.However, if you have already purchased Kaplan's GMAT CAT with CD-Rom, then all the practice questions - 3 sets each for sentence correction, reading comprehension and critical reasoning - from this book (with explanations )are available on the CD-Rom. I, felt, sort of, cheated of my $$$.In summary, buy this book only if you do not have the Kaplan GMAT CD-ROM. Save yourself some money. Don't spend your money twice for the same material!!
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