Oefen de Passive op onderstaande links:
http://www.engels.csdehoven.nl/Guus%20SO/teksten/PASS_UITLEG.htm
http://www.taaldok.nl/engels/grammatica/passiveactive.html
http://www.englisch-hilfen.de/en/exercises_list/passiv.htm http://www.ego4u.com/en/cram-up/grammar/passive/exercises http://web2.uvcs.uvic.ca/elc/studyzone/410/reading/exercises/dogqz.htm http://wwwedu.ge.ch/cptic/prospective/projets/anglais/exercises/passive1.htm