PRESENT SIMPLE/PRESENT CONTINUOUS

Here you have some links where you can practice these tenses:

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

http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/simcon1.htm

http://www.ego4u.com/en/cram-up/grammar/simpre-prepro/tests?test2