To practice comparatives and superlatives, click on the tags on the side of this blog.
Gradable and non gradable adjectives:
https://learnenglish.britishcouncil.org/grammar/b1-b2-grammar/adjectives-gradable-and-non-gradable
Slightly, a little, a bit, far, much, a lot:
https://learnenglish.britishcouncil.org/grammar/b1-b2-grammar/modifying-comparisons
https://www.tinyteflteacher.co.uk/learn-english/grammar-practice/adjectives/much-slightly-practice
https://test-english.com/grammar-points/a1/much-many-lot-little-few/ (3 exercises)
As...as:
https://www.englisch-hilfen.de/en/exercises/adjectives_adverbs/adjectives_comparison_as_as.htm
https://first-english.org/english_learning/english_year_2/as_as_than/64_as_as_than_test.htm
https://www.englishexercises.org/makeagame/viewgame.asp?id=8493
https://www.ego4u.com/en/cram-up/grammar/adjectives-adverbs/adjectives/exercises?02
