Twelve ____ were hurt, but no _____ were lost in that accident.
A. person, life
B. peoples, lives
C. people, lives
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Richard became a doctor at the ____ of 20.
A. year
B. time
C. age
There is a _____ store near the station.
A. book
B. book's
C. books'
Those boys are _____ .
A. a American
B. an American
C. Americans
Ask the boy not to make any _____. I can't fall sleep.
A. voice
B. sound
C. noise