单项选择题
Mr. Smith moved to another town, and soon he needed a new doctor. He went to see one. He sat down in the waiting-room and looked around. The doctor degree was 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!
When he went in to see the doctor, he remembered a young, handsome (英俊的) student, and was sorry to see how old and heavy this man looked. He said to him, "Good morning, doctor. Did you go to King High School"
"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 second. "What were you teaching\
A. Only the doctor
B. Only Mr. Smith
C. Both of them