Practice

You have some grammar practice on present simple (text, video and song!)
http://www.englishexercises.org/makeagame/viewgame.asp?id=1849

Present Simple or Present Continuous?
http://www.isabelperez.com/prs-prc.htm

Practise Past Simple with Mr Bean!!
http://efllecturer.blogspot.com/2011/06/mr-bean-at-the-dentist-pastsimple.html