enter to this page and write the explanation
http://www.curso-ingles.com/gramatica-inglesa/compar.php
1- http://www.englishexercises.org/makeagame/viewgame.asp?id=5424
2- http://www.englishexercises.org/makeagame/viewgame.asp?id=5425
3- http://www.englishexercises.org/makeagame/viewgame.asp?id=6009
4- http://www.englishexercises.org/makeagame/viewgame.asp?id=7493
5-http://www.englishexercises.org/makeagame/viewgame.asp?id=1833
6-http://anthonyhalderman.com/english/compsup.htm
7- http://www.learnenglish-online.com/grammar/tests/superlativecomparative.html
8- http://a4esl.org/q/h/vm/compsup.html
