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When Mary Smith was a1,
she wanted to be a teacher, 2 she liked children. When she was twenty, she
began teaching in a small school. She was a good teacher, and she3 a lot with the children in her class. They4 her teaching.
One day5of the girls in her class said to her, "Miss Smith, 6does a man's hair become grey before his beard(胡子)does?"
Mary
laughed and answered, "I don't know. Helen, do you know?"
"I don't know7,
Miss Smith, "said Helen, "but it happened to my father." The8children
in the class laughed when they heard this.
Then a boy said, "I9,
Miss Smith! A man's hair becomes grey10because it's sixteen
years older than his beard."