Hard work and lack of sleep have _________ her beauty and youth in recent years.
In many places in China, ___ bicycle is still ___ popular means of transportation.
—Hello, could I speak to Mr. Smith? —Sorry, wrong number. There isn't______ Mr. Smith here.
_________ worries me the way he keeps changing his mind.
Little joy can equal ________ of a surprising ending when you read stories.
—Who called me this morning when I was out? —A man calling ______ Robert.