PAST CONTINUOUS

1.GRAMMAR

http://www.inglessencillo.com/pasado-continuo






2. EXERCISES


http://www.vitutor.com/gramatica_inglesa/verb_tense/simple_past_ej9.html






http://www.curso-ingles.com/practicar/ejercicios/past-continuous





















PAST CONTINUOUS AND PAST SIMPLE

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