2º Bachillerato: Modal Verbs Rephrasing

http://es.scribd.com/doc/39513902/15th-oct-REPHRASING-MODAL-VERBS

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

http://alvarofronteacher.wikispaces.com/file/view/Modal+Verbs+Rephrasings.pdf

http://iescarin.educa.aragon.es/index.php?option=com_content&view=article&id=488:rephrasing-with-modal-verbs&catid=126:2-bachillerato&Itemid=170