PAST CONTINUOUS (tutorial)

http://www.englishpage.com/verbpage/pastcontinuous.html

http://www.myenglishpages.com/site_php_files/grammar-lesson-past-progressive.php#.UxIu2F51tqI

PAST CONTINUOUS (exercices)

www.liveworksheets.com/oh1569dz

www.englishclub.com/esl-games/grammar/jumbled-tenses-past-continuous-1.htm

http://www.englishexercises.org/makeagame/viewgame.asp?id=6631

http://www.englishexercises.org/makeagame/viewgame.asp?id=3580

http://www.english-4u.de/past_prog_ex7.htm

http://www.english-4u.de/past_prog_ex8.htm

http://www.myenglishpages.com/site_php_files/grammar-exercise-past-progressive.php#.UxIu9V51tqI

PAST SIMPLE & PAST CONTINUOUS (mixed sentences)

http://www.englishexercises.org/makeagame/viewgame.asp?id=1206#a

http://www.english-4u.de/past_prog_ex1.htm

http://www.english-4u.de/past_prog_ex2.htm

http://www.english-4u.de/past_prog_ex3.htm

http://www.english-4u.de/past_prog_ex4.htm

http://www.english-4u.de/past_prog_ex5.htm

http://www.english-4u.de/past_prog_ex6.htm

http://www.englishpage.com/verbpage/verbs3.htm

http://www.englishpage.com/verbpage/verbs4.htm