REPORTED SPEECH:
Here you have a link to grammar theory about reported speech:

https://www.myenglishpages.com/site_php_files/grammar-lesson-reported-speech.php

EXERCISES:

http://www.conhecer.org.br/download/INGLES%20INTERMEDIARIO/Module%202-%20reported-speech4.pdf

https://www.perfect-english-grammar.com/reported-speech-exercise-4.html


https://inglescarmelitaslb.files.wordpress.com/2011/05/reported-speech.pdf

476_REPORTED SPEECH.pdf

http://www.edu.xunta.gal/centros/iesallariz/system/files/REPORTED_SPEECH%20(3)_0.pdf

https://ingleselcano.jimdo.com/placi/2º-bachillerato/

https://www.risorsedidattiche.net/inglese/grammatica/reported_speech/reported_speech_mixed_exercise_8.pdf