A2 Unit 4 Mysteries

MEMORABLE MOMENTS 

http://www.montsemorales.com/gramatica/PastContinAffnegSw2-6.htm

http://www.montsemorales.com/gramatica/PastContinAffneg.htm

http://www.montsemorales.com/gramatica/PastSimpContSw2-6.htm

http://www.e-grammar.org/past-simple-continuous/test1-exercise1/

http://www.eflnet.com/grammar/pastprog.php

http://www.learnamericanenglishonline.com/Listening_Lab/Listening_Lab_Exercise_37_past_continuous_tense.html