SOME OR ANY THAT'S THE QUESTION. SOME ONLINE EXERCISES

http://www.uv.mx/tecaprendizaje/material/cursoenlinea/Mary/Grammar/Countable%20and%20Unc%20Nouns/Countable%20and%20uncountable/countable_and_uncountable_nouns.htm (countable/uncountable)

http://www.englisch-hilfen.de/en/exercises/confusing_words/some_any.htm

http://www.ego4u.com/en/cram-up/vocabulary/some-any  (exercises with explanations)

http://www.saberingles.com.ar/lists/ifood.html (food vocabulary exercises)