John Soars and Liz Soars, "American Headway 4: Workbook"
Publisher: Oxford University Press, USA | Workbook edition (September 28, 2005) | ISBN: 0194392805 | 80 pages | PDF | 50MB
It builds on the firm of grammatical, lexical and functional foundation laid in the previous series. Both fluency and accuracy are given equal attention at this upper level.
