links 8th grade A

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

http://www.learnenglish-online.com/grammar/tests/comparativeadjectives2.html

http://www.englishexercises.org/makeagame/viewgame.asp?id=2070

https://elt.oup.com/student/solutions/elementary/grammar/grammar_08_012e?cc=cl&selLanguage=en

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

http://www.englisch-hilfen.de/en/exercises/adjectives_adverbs/adjectives_comparison_sentences2.htm

http://www.perfect-english-grammar.com/comparative-adjectives-exercise-1.html

http://speakspeak.com/english-grammar-exercises/elementary/comparative-adjectives

http://www.eslgamesplus.com/comparatives-superlatives-wild-zoo-animals-vocabulary-grammar-interactive-monkey-fun-activity/

http://www.turtlediary.com/grade-3-games/ela-games/write-comparative-forms-of-adjectives.html

http://gamestolearnenglish.com/compare/

http://www.marks-english-school.com/games/basketball.html