http://www.perfect-english-grammar.com/reported-speech-exercises.html
http://www.ego4u.com/en/cram-up/grammar/reported-speech
http://www.xtec.es/~ogodoy/sac/rephrasing/rephrexercises.htm
http://www.xtec.es/~ogodoy/sac/rephrasing/rephrexercises.htm
http://www.xtec.es/~ogodoy/sac/rephrasing/rephrexercises.htm