- A revised and expanded version of the highly successful and innovative pronunciation text for intermediate to high-intermediate students of North American English. The Clear Speech, Third Edition, Teacher"s Resource Book provides unit overviews, teaching suggestions, audio scripts, and answer keys for each unit in the Student"s Book. It also includes diagnostic tests, 15 unit quizzes on photocopiable pages, and an audio CD that contains the listening material for the unit quizzes.