segon C past continuous in images

http://irenebreznak.com/yahoo_site_admin/assets/docs/Worksheet_for_students.11690408.pdf
http://www.groovetoenglish.com/pastcontinuous.htm
http://www.myenglishpages.com/site_php_files/grammar-exercise-past-progressive.php
http://www.englishexercises.org/makeagame/viewgame.asp?id=1206

http://www.englishexercises.org/makeagame/viewgame.asp?id=7192