Adjective → Adverb
The kids ate the berries _____. (quick)
Quickly
According to experts, global warming is having a _____ impact on the environment. (critic)
Critical
I'm glad to see my students' _____ throughout the year. (develop)
Development
She had a very disturbing _____ as her parents used to fight all the time. (child)
Childhood
She stopped _____. (sudden)
Suddenly
The story related the _____ return of a young boy kidnapped from his San Francisco home. (success)
Successful
Everybody should help make decisions instead of leaving the task up to the _____. (govern)
Government
It's sad to see Jennifer and her sisters fighting over _____ of their father's land. (owner)
Ownership
He _____ sang for the audience. (willing)
Willingly
The _____ party promised to cut taxation when it was elected. (politics)
Political
There's no _____ as to when the plan will be approved. (certain)
Certainty
He's been trying to get his Italian _____ for almost 2 years. (citizen)
Citizenship
You play the piano _____! (beautiful)
Beautifully
I am _____ that she will come tomorrow. (hope)
Hopeful
Poor hygiene can increase the danger of _____. (infect)
Infection
Our priests belong to a Franciscan _____. (brother)
Brotherhood