Grammar links (comparatives and superlatives)

http://www.eflnet.com/tutorials/adjcompsup.php


http://www.ucalgary.ca/UofC/eduweb/grammar/course/speech/1_4d.htm



http://www.stclaresenglish.net/langprac/compstu1.htm




http://www.ego4u.com/en/cram-up/grammar/adjectives-adverbs/adjectives/exercises


http://people.hofstra.edu/Ilaria_Marchesi/exercises2/ch_27_3.htm