A reference and practice book for intermediate and more advanced learners of English. Covering all areas of language which students at this level find difficult, this substantially revised and updated book retains the clarity, simplicity and accessibility of the first edition, adding to it new and redesigned units and appendices, modified right-hand page exercises and additional exercises. Easy to use: 136 two-page units combine clear, accurate language presentation on left-hand pages with thorough, varied practice on facing pages. Suitable for use in class or for homework New additional exercises offer further practice of grammar points from different groups of units. Designed to be flexible: teachers can select the units which are relevant to the needs of their students Appendices deal with irregular verbs, tense formation, modals, spelling, short forms and American English.