Adjectives

Here are a couple of links to a website where you'll be able to practice all kinds of grammar exercises. These links refer to gradable and non-gradable adjectives and adjectives with -ed and -ing:

http://www.ejerciciodeingles.com/como-utilizar-adjetivos-acabados-ed-ing-ingles/

http://www.ejerciciodeingles.com/adjetivos-graduables-no-graduables-ingles/