Hey people, please have a look at the following websites!
It will do you good, (:
http://musictheory.net/lessons/html/id10_en.html
http://musictheory.net/trainers/html/id82_en.html
http://www.teoria.com/exercises/measure.htm
http://www.teoria.com/exercises/ritmo-ear.htm
Have fun! :D
CASSho!