STUDY THE FORM:
A) COMPARATIVES
1. http://www.englishexercises.org/makeagame/viewgame.asp?id=4661
2. http://www.englishexercises.org/makeagame/viewgame.asp?id=5373
3. https://www.facebook.com/notes/english-teaching-learning-resources/multiple-choice-quiz-comparative-adjectives/700322140026227/
4. http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/regcom1.htm
5. http://www.better-english.com/grammar/comparatives.htm
B) SUPERLATIVES
1. http://www.focus.olsztyn.pl/en-superlative-adjectives-exercise.html#.VsrTibThC1s
2. http://baladre.info/english/sedaviwebfront/adjesuper.htm
3. http://www.englishexercises.org/makeagame/viewgame.asp?id=1876
4. http://www.englishexercises.org/makeagame/viewgame.asp?id=5425
5. http://www.agendaweb.org/exercises/grammar/comparison/superlative-forms
C) COMPARATIVES AND SUPERLATIVES
1. http://www.englishexercises.org/makeagame/viewgame.asp?id=1205
2. http://www.englishexercises.org/makeagame/viewgame.asp?id=2065
3. http://www.englishexercises.org/makeagame/viewgame.asp?id=5425
4. http://www.englishexercises.org/makeagame/viewgame.asp?id=7493
5. http://www.englishexercises.org/makeagame/viewgame.asp?id=10396
6. http://www.englishexercises.org/makeagame/viewgame.asp?id=1833
7. http://www.englishexercises.org/makeagame/viewgame.asp?id=6050