The book may be used either in class or for self-study. For classroom use. teachers should choose topic areas to supplement the language areas covered by the English course book being followed, either to consolidate the presentation of language forms or to provide additional exercises. For self-study use. students should choose topics according to their own interests or to problems they or their teachers have identified. For both teachers and students, the contents at the front of the book and the detailed index at the end will help to locate appropriate units.
