Insight into IELTS Extra, with Answers: The Cambridge IELTS Course Workbook by Vanessa Jakeman
This workbook contains practice activities for the whole range of IELTS task types, a 'Vocabulary Builder' to extend students' knowledge of words, phrases and collocations, 'Test tips', and timed exercises. It can be used in conjunction with the Insight into IELTS coursebook or on its own. A Workbook 'without answers' is also available.