The Workbook mirrors the Student's Book in its organisation, providing a wealth of extra grammar and vocabulary exercises and opportunities to practise reading, listening, speaking and writing. It also offers higher-level material in the form of Grammar challenge and Vocabulary extension exercises, particularly useful for mixed ability classes. Это и многое другое вы найдете в книге Gateway: Workbook: Level B2 (Frances Treloar, Gill Holley)