some any

http://www.englisch-hilfen.de/en/exercises/confusing_words/some_any.htm
 
http://www.englishexercises.org/buscador/buscar.asp?nivel=any&age=0&contents=some-any

http://www.englishexercises.org/makeagame/viewgame.asp?id=1657

http://www.ego4u.com/en/cram-up/vocabulary/some-any