KEY to BATXILLERAT 2
Starter Unit
Ben or gone? https://www.ecenglish.com/learnenglish/lessons/been-or-gone
The Adventures of Tin Tin
GRAMMAR
http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/
http://eslgrammarpractice.blogspot.com.es/
http://www.esl-classroom.com/grammar/gindex.html
http://www.learnamericanenglishonline.com/Yellow%20Level/Yellow%20Level.html
http://www.learnenglish.de/grammarpage.html
http://www.bbc.co.uk/worldservice/learningenglish/grammar/grammar_challenge/
http://www.mansioningles.com/Gramatica.htm
http://www.ego4u.com/en/cram-up/grammar
http://www.englisch-hilfen.de/en/exercises_list/alle_grammar.htm
http://www.autoenglish.org/tenses.htm
Steve Jobs' speech at Stanford University:
http://www.real-english.com/reo/40b/40b-1.htm (subtitles + exercices)