2º ano : The causative form of TO HAVE

http://www.usingenglish.com/quizzes/221.html

http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-79271.php

http://www.englishexercises.org/makeagame/viewgame.asp?id=1759

https://elt.oup.com/student/solutions/int/grammar/grammar_09_012e?cc=br&selLanguage=pt

http://www.grammarbank.com/causative-exercise.html

http://www.ego4u.com/en/cram-up/grammar/participles/exercises?08