here are some useful links for you to revise the two tenses:

action and state verbs:
http://www.eclecticenglish.com/grammar/PresentContinuous1H.html

simple or contibuous?
http://www.englishpage.com/verbpage/verbs1.htm

http://www.englisch-hilfen.de/en/exercises/tenses/simple_present_progressive2.htm

Passive
http://www.ego4u.com/en/cram-up/grammar/passive/exercises?simple-present

http://www.englishlab.net/hp/quiz7_present_simple_continuous_passive_1.htm

have fun!