3rd ESO-B (Xavier P.)
https://www.burlingtonbooks.com/Spain/Page.aspx?pageID=236
CONFINAMENT:
SOME GRAMMAR NOTES!... AND EXERCICES TO PRACTICE!!
VERB TENSES
https://www.ego4u.com/en/cram-up/grammar/tenses
PRESENT SIMPLE AND CONTINUOUS.-
http://ani-anievas.blogspot.com.es/2012/01/present-simple-or-present-continuous.html
http://www.ejerciciosinglesonline.com/new-exercises/ex1-presente-simple-vs-continuo-ejercicio/
http://lawebdelingles.com/nivel-a1/ejercicios-de-presente-simple-y-presente-continuo/
PRESENT PERFECT simple
exercises online to practice present perfect
COMPARATIVE-SUPERLATIVE TEST