That was a (clever / cleverly) answer.
clever
The journey was (quick / quickly).
quick
She cooks (terrible / terribly).
terribly
Your flat seems (tidy / tidily) today.
tidy
The music was (beautiful / beautifully).
beautiful
He is a (terrible / terribly) cook.
terrible
She plays the piano (beautiful / beautifully).
beautifully
Julia is a (careful / carefully) person.
careful
The baby rubbed her eyes (tired / tiredly).
tiredly
You look (tired / tiredly). Didn't you sleep well?
tired
I ran (quick / quickly) to the station.
quickly
She sang (happy / happily).
happily
You sound (happy / happily).
happy
I speak English (well / good).
well