The Workbook provides students with further opportunities to practice difficult grammar points, and to consolidate their understanding of related grammar topics. It offers a wide range of activities, which include opportunities to work with grammar structures in meaningful contexts. The Workbook also includes review sections for each group of units in the Student's Book. These groups, such as Present and Past, Modals, and Articles, are listed in the table of contents of each Student's Book. This edition includes an answer key. An edition without answers is also available.