Unit 4 grammar: A bit, a little, slightly, much, far, a lot (6º)

You can practice modifying comparatives here:


https://learnenglish.britishcouncil.org/es/grammar/intermediate-to-upper-intermediate/comparing-and-contrasting-modifying-comparatives

http://www.tinyteflteacher.co.uk/learning-english/grammar/exercises/much-comparatives.html