USED TO, GET USED TO, BE USED TO

http://speakspeak.com/english-grammar-exercises/intermediate/used-to-be-used-to-get-used-to

http://www.englishexercises.org/makeagame/viewgame.asp?id=2447

http://www.ejerciciodeingles.com/ejercicios-used-to-be-used-to-get-used-to-rellenar-huecos/

http://www.myenglishpages.com/site_php_files/grammar-exercise-used-to.php

http://www.autoenglish.org/modalverbs/gr.used.i.htm

http://www.esl-lounge.com/student/grammar/4g68-used-to-be-used-to.php

http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-80920.php

http://www.usingenglish.com/quizzes/115.html

http://www.agendaweb.org/verbs/to-be-used-to.html