New Headway: Upper-Intermediate Third Edition: Workbook (With Key) by John Soars

With its proven methodology, Headway is the course you can always trust. The strong grammar focus, clear vocabulary syllabus and integrated skills work give you lessons that really work in class. Constant updates mean the material is always current, and with a huge range of components available, you've always got support where you need it.
Binding: Paperback / softback