Answer:
unhappy
badly
bad
well
good
careful
carefully
Explanation:
I'll give an example on "bad" word
The word bad is an adjective and should be used to modify nouns and pronouns. Badly, like most words ending in -ly, is an adverb and is used to modify verbs. So it would be appropriate to use an adverb ending in -ly to describe how he/she has done