Past Simple or Continuous

Here you can find some activities to practise with these verb tenses
http://www.nonstopenglish.com/lang/es/allexercises/Grammar/Grammar-past.asp
http://perso.wanadoo.es/autoenglish/gr.pascon.i.htm
http://perso.wanadoo.es/autoenglish/gr.pascon.p.htm