http://www.manythings.org/wbg/irr-plurals1-sw.html
http://perso.numericable.fr/~olivierha/workandplay/QUIZ/pluriel/pluriel1.htm
http://rv.humbert.chez-alice.fr/college/pluriel1match.htm
(phrases) http://perso.numericable.fr/~olivierha/workandplay/QUIZ/Pluriel1.htm
(irréguliers) http://eslpartyland.com/quiz/irpl1.htm