Much many exercises english 2
http://www.ego4u.com/en/cram-up/vocabulary/much-many/exercises
http://www.better-english.com/easier/howmuch.htm
http://www.englisch-hilfen.de/en/exercises/confusing_words/much_many.htm
http://www.englisch-hilfen.de/en/exercises/confusing_words/much_many2.htm