Extreme English Grammar and Idioms in Use ( 2010 )
supermemo.pl | 2010 | ISO | 740 MB

All the definitions and instructions in the course are in British English. If a word has a popular American English equivalent or spelling, it is listed among the synonyms. All the words and definitions in the course have been recorded by British native speakers.
Practice makes perfect!

George Yule, "Oxford Practice Grammar: Supplementary Exercises with Key Advanced level"
Oxford University Press | 2009 | ISBN: 0194579875 | 136 pages | PDF | 4,4 MB