3º ESO: MODAL VERBS

SOME EXERCISES ON THE MODAL VERBS!
http://www.englishpage.com/modals/interactivemodal1.htm http://www.englishgrammarsecrets.com/musthaveto/menu.php
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-49540.php
http://www.eclecticenglish.com/grammar/Should1A.html
http://www.englisch-hilfen.de/en/exercises/modals/can.htm