To enable us to provide a better service to you both now and in the future, we are planning to upgrade our order management system. This upgrade will begin on May 14th and continue until mid-May. During this period you will be unable to order through our website. We recommend that you purchase through a local bookseller.
Interchange Fourth Edition is a four-level series for adult and young-adult learners of English from the beginning to the high-intermediate level.
Workbook B, Intro has six-page units that follow the same sequence as Student's Book B, Intro. The workbook helps recycle and review language by providing additional practice in grammar, vocabulary, reading, and writing. It contains units 9-16 and is appropriate for in-class work or assigned as homework.