Comparatives and Superlatives

If need more practice on comparatives and superlatives, I recommend you to do the exercises below. 

Explicación en español de los comparativos y superlativos:

 http://www.inglessencillo.com/comparativo-y-superlativo

Exercises

http://learnenglish.britishcouncil.org/es/english-grammar/adjectives/comparative-and-superlative-adjectives 

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

http://www.english-in-chester.co.uk/e-learning/lesson/superlatives-comparatives/