PRESENT SIMPLE AND PRESENT CONTINUOUS EXERCISES

http://www.perfect-english-grammar.com/present-simple-present-continuous-1.html

http://www.englishpage.com/verbpage/verbs1.htm

http://www.english-4u.de/pres_prog_ex4.htm

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

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

http://www.vitutor.com/gramatica_inglesa/verb_tense/present_ej11.html

http://lawebdelingles.com/nivel-a1/ejercicios-de-presente-simple-y-presente-continuo/