F: Good morning, young man. What's your name, please? ,M: My name is Zhang Ming. I'm 12 years old now. Can you introduce your doctors? ,F: We doctors in this hospital fly to different poor places. People with eye problems can come to us. We give medicine to the poor or do operations on them free. ,M: I started to have problems with my eyes when I was 7. Now I can't see things clearly. Can you help me?
(A) F: I didn’t hear you. Please could you tell me again? (B) F: You mean you have had the eye problem for five years, right? (C) F: Even if you had 7 years of eye problem since you were 8, we could cure it. (D) F: Why you can see things clearly? You said you had 12 years of eye problems.
B