Game - past simple
http://www.english-online.org.uk/games/pasttense2.htm
http://www.english-online.org.uk/games/pasttense.htm
http://www.bradleys-english-school.com/online/jigword/jigpast1.html
http://www.bradleys-english-school.com/online/jigword/jigpast2.html
http://www.bradleys-english-school.com/online/matchingpairs/mpiregpast2.html
http://www.bradleys-english-school.com/online/matchingpairs/mpiregpast3.html