A classic developmental skills text for intermediate to advanced students of English as a second or foreign language, Understanding and Using English Grammar is a comprehensive reference grammar as well as a stimulating and teachable classroom text. While keeping the same basic approach and material as in earlier editions, the third edition more fully develops communicative and interactive language-learning activities. Some of the new features are: * Numerous "real communication" opportunities * More options for interactive work in pairs and groups * Additional open-ended communicative tasks for both speaking and writing * Expanded error analysis exercises * Interesting and lively new exercise material * Shorter units for easy class use.