2nd BAT - RELATIVE CLAUSES

EXPLANATION:

http://www.slideshare.net/carmenglish/relative-clauses-12974912

http://www.slideshare.net/f2teacher/relative-clauses-presentation-928851

EXERCISES:

http://www.ego4u.com/en/cram-up/grammar/relative-clauses/exercises?02

http://www.ego4u.com/en/cram-up/grammar/relative-clauses/exercises?10

http://www.ego4u.com/en/cram-up/grammar/relative-clauses/exercises?04

http://www.xtec.cat/~ogodoy/sac/rephrasing/relclex1.htm

http://www.englisch-hilfen.de/en/exercises/pronouns/relative_pronouns.htm

http://www.autoenglish.org/generalgrammar/gr.relative.i.htm

2NDBAT- modal verbs exercises

Can / could / be able to:
http://www.englishclub.com/grammar/verbs-modals_can_quiz.htm

http://www.ecenglish.com/learnenglish/lessons/can-could-be-able

http://www.tinyteflteacher.co.uk/learning-english/grammar/exercises/modal-verbs-ability.html

Have to / must / should: 

http://www.englishexercises.org/makeagame/viewgame.asp?id=3401

May / might / can´t / must: 

http://www.autoenglish.org/gr.may3.i.htm

http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-10201.php