definition
eager to investigate and learn or learn more (sometimes about others' concerns)
sentence
I was curious to know whether there was any physical addiction to doping that might lead an athlete into recidivism.
difficulty
easy
toefl frequency
3
toefl classification
adverb
curiously
adjective
curious
adverb sentence
While I was snapping pictures of the center's exterior, an employee cracked opened the door and looked at me curiously.