F7ab Comparison of adjectives

https://www.ego4u.com/en/cram-up/grammar/adjectives-adverbs/adjectives/exercises
https://www.englisch-hilfen.de/en/exercises/adjectives_adverbs/adjectives_comparison_sentences.htm
https://www.englisch-hilfen.de/en/exercises_list/adjektiv_adverb.htm
http://www.eslkidsworld.com/Interactive%20games/comparatives%20and%20superlatives%20animals%20football%20quiz.html