Mr Smith moved to another town. One day he didn't feel very well, so he went to see the doctor. He sat down in the waitingroom and looked around. The doctor's degrees (学位证书) were on the wall. Suddenly Mr Smith remembered there had been a classmate with the same name in his class at school, and he had become a doctor!
As he went in to see the doctor, he remembered a young, handsome student and was sad to see how old this man looked. He said to him, "Good morning, Doctor. Did you go to King High School? " The doctor answered, "Yes, I did. "
"Were you there from 1942 to 1946? " Mr Smith asked.
"Yes, I was. " the doctor answered, "How did you know? " Mr Smith laughed and said, "You were in my class! "
"Oh? " the doctor said and looked at him carefully for a few minutes, "What were you teaching? "
