Some - Any

Second year students: this is for you!
When do we use some or any? Do you remember?
Here you find some exercises to review and to study these topic.

http://www.englishexercises.org/exercise.asp?id=4716
http://www.englishexercises.org/exercise.asp?id=5271
http://www.englishexercises.org/exercise.asp?id=7561