Unit 2: A question of sport
http://www.montsemorales.com/gramatica/PastContinAffneg.htm
http://www.montsemorales.com/gramatica/PastSimplCont2.htm
http://www.montsemorales.com/gramatica/PastSimplCont3.htm
http://appli-etna.ac-nantes.fr:8080/peda/disc/lv/anglais/hotpotex/lycee/htmLycee/pretsplcont.htm