Ing Industrial/ Acuicultura Ingles III

here u have for practicing and listening!
englishgrammar3.blogspot.com/2009/01/comparatives-and-superlatives.html
http://www.cdlponline.org/index.cfm?fuseaction=activity1&topicID=9&storyID=173

Ing Industrial-Inglés IV

hi guys! for next class
http://www.cdlponline.org/index.cfm?fuseaction=activity2&topicID=9&storyID=117
/www.ego4u.com/en/cram-up/grammar/tenses