Exercices

http://www.perfect-english-grammar.com/past-simple-exercise-3.html

http://www.englishexercises.org/makeagame/viewgame.asp?id=5133

http://www.agendaweb.org/exercises/verbs/past-simple-regular

http://www.agendaweb.org/exercises/verbs/past-simple-regular-d-ed-ied.htm

http://www.montsemorales.com/gramatica/PastRegPdcCr.htm

http://www.adelescorner.org/grammar/past_tense/past_regular.html