聽兩遍。根據你所聽到的短文內容，從A、B、C三個選項中選出正確答案。
1. What did the young man do with his lessons?
A. He worked hard at his lessons.
B. He didn't want to work at his lessons.
C. He wanted to give up his lessons.
2. What did the doctor ask the young man to do?
A. To try counting numbers.
B. To get up and drink some tea.
C. To have some medicine.
3. Why did the young man return to the doctor's office the next day?
A. He wanted to thank the doctor.
B. He wanted to ask for more medicine.
C. He still couldn't fall asleep.
4. Did the young man really understand the doctor's advice?
A. Yes, he did.
B. No, he didn't.
C. We don't know.
