3rd Level - Comparisons with adverbs

http://www.englisch-hilfen.de/en/exercises/adjectives_adverbs/adverb_comparison.htm

(Write the comparative form)

http://www.englishexercises.org/makeagame/viewgame.asp?id=6088

(Complete the blanks)

http://www.eflnet.com/grammar/compsupadv1.php

(Comparative quiz)

http://www.learnenglishfeelgood.com/english-adverbs-comparative1.html

(Complete with the comparative)

http://www.grammarbank.com/adjectives-adverbs-comparatives.html

(Complete with the comparative)

http://learnenglish.britishcouncil.org/en/english-grammar/adverbials/comparative-adverbs

(Put the words in order)

http://www.ego4u.com/en/chill-out/games/adjective-quiz

(Quiz - Do you know the best?)