class 6: some and any

Don't forget:
some in positive sentences
any in negative sentences

http://www.englisch-hilfen.de/en/exercises/confusing_words/some_any.htm
http://www.englisch-hilfen.de/uebungen/knifflige_woerter/some_any3.htm
http://www.ego4u.de/de/cram-up/vocabulary/some-any/exercises
http://www.cafe-lingua.de/uebungen-englisch/uebung-1-some-and-any.php
http://www.autoenglish.org/gr.some.i.htm

some and any in questions
http://www.englisch-hilfen.de/en/exercises/confusing_words/some_any2.htm
http://www.ego4u.com/en/cram-up/vocabulary/some-any/exercises?11
http://www.ego4u.com/en/cram-up/vocabulary/some-any/exercises?12