This document discusses the difference between using "some" and "any" in sentences. "Some" is used with plural countable nouns and uncountable nouns in positive sentences, while "any" is used with plural countable nouns and uncountable nouns in negative and interrogative sentences. Examples are provided to illustrate using "some" and "any" correctly in different contexts. The document concludes with an exercise for readers to practice identifying whether "some" or "any" should be used in sample sentences.