Cold-colder

Words with voice and pictures:
http://www.learningchocolate.com/


News:
Here you can find news articles in different levels with exercises, look around:
http://www.breakingnewsenglish.com

Cold-colder, interesting-more interesting:
http://www.agendaweb.org/grammar/comparison-exercises.html

http://didlr.com/FznqDp


Real life:
Learn these and imagine real life situations when you would use or hear them:
http://quizlet.com/33308387/er-flash-cards/