EXERCISES

                                 EXERCISES PRESENT SIMPLE

http://www.curso-ingles.com/ejercicios-test-ingles/psimple.php

http://www.esolcourses.com/content/exercises/grammar/presentsimple/wordmatch/1/wordmatch.html

http://www.englishexercises.org/makeagame/viewgame.asp?id=1052

http://www.englishexercises.org/makeagame/viewgame.asp?id=2975

http://www.englishexercises.org/makeagame/viewgame.asp?id=714

EXERCISES PAST SIMPLE - PAST CONTINUOS

http://www.ejerciciosinglesonline.com/new-exercises/ex1-pasado-simple-vs-continuo-ejercicio/

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

http://www.learnenglish-online.com/grammar/tests/pastcontinuoussimplepast.html

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

https://www.ego4u.com/en/cram-up/grammar/simpas-paspro/exercises

http://www.myenglishpages.com/site_php_files/grammar-exercise-past-perfect.php

http://www.learnenglish.de/games/tenses/pastsvspastc.html

http://www.english-grammar-lessons.com/pastsimpleorcontinuous/exercise1.swf