task 1: http://www.esl-lounge.com/level4/lev4reportedspeechwsheet.php
answers 1: http://www.esl-lounge.com/level4/lev4reportedspeechwsheetans.php
task 2: http://www.autoenglish.org/generalgrammar/reporting%20verbs.pdf
task 3: http://www.autoenglish.org/generalgrammar/morereportingverbs.pdf
task 4: http://mbonillo.xavierre.com/exercises/bch2/2bch2011/repvbR2bch1.htm
task 5: http://www.cambridgeenglish.org/learning-english/activities-for-learners/c1g001-reporting-verbs
task 6: http://www.englishexercises.org/makeagame/viewgame.asp?id=369
when u r fed up with grammar 🙂 (choose hard version for more fun): https://www.funbrain.com/words.html