Hi there, here I leave you some exercises to improve this grammatical point. Enjoy and see you next week!
http://www.isabelperez.com/some-any.htm some or any?
http://a4esl.org/q/j/ck/ch-countnouns.html quiz countable or uncountable
http://a4esl.org/q/j/km/mc-noncount.html another funny one.
http://a4esl.org/q/h/lb/how.html how much or how many?
