1º bach. Extra activities

*Defining relative clauses: http://www.perfect-english-grammar.com/support-files/relative_clauses_exercise_3.pdf

*Non-defining relative clauses: http://www.autoenglish.org/generalgrammar/gr.nonrelat.pdf

*Modal verbs 1: http://www.autoenglish.org/modalverbs/gr.must.pdf

*Modal verbs 2: http://www.autoenglish.org/modalverbs/gr.mustnt.pdf

*Modal verbs 3: http://www.autoenglish.org/gr.can.pdf

*Modal verbs 4: http://www.grammarbank.com/modal-verbs-test.html

*Future tenses 1: http://www.englisch-hilfen.de/en/exercises/tenses/future.htm

*Future tenses 2: http://www.english-4u.de/future_ex3.htm

*Future tenses 3: http://www.englishlessonsbrighton.co.uk/future-tenses-exercise/