PRESENT SIMPLE AND CONTINUOUS EXERCISES 4

http://www.ejerciciodeingles.com/ejercicios-formas-verbales-presente-present-simple-present-progressive-rellenar-huecos/

PRESENT SIMPLE AND CONTINUOUS EXERCISES 3

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

PRESENT SIMPLE AND CONTINUOUS EXERCISES 2

http://www.englishexercises.org/makeagame/viewgame.asp?id=1438

PRESENT SIMPLE AND CONTINUOUS EXERCISES

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