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This eBook helps you fine-tune your knowledge of grammar essentials in order to succeed in school, on standardized tests, and in the workplace. In quick but thorough lessons that take only 20 minutes a day, it provides: a pretest to help you pinpoint your strengths and weaknesses; lessons with hundreds of practice exercises in test format covering all vital grammar skills, (parts of speech, sentence structure, punctuation), and a posttest to show you the progress you've made and where you may need more help.