comparatives and superlatives

EX:1http://www.usingenglish.com/quizzes/45.html

EX:2http://web2.uvcs.uvic.ca/elc/StudyZone/330/grammar/regcom1.htm

EX: 3http://perso.wanadoo.es/autoenglish/gr.comp.i.htm

EX: 4http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/regcom2.htm