Active Grammar gives learners systematic guidance in their study of English Grammar and helps them build a strong foundation for good English. The books cover all essential grammar concepts and are invaluable both as an independent grammar resource and as a complement to other English coursebooks. Key Features - Systematic and full coverage of essential grammar topics. Clear and concise explanations facilitate rapid understanding. Contextual examples and helpful notes illustrate meaningful application and aid retention. Numerous exercises provide ample opportunities for practice and reinforcement. Separate answer key offers flexibility for guided or independent evaluation.