单项选择题
M: Doctor! Doctor! Help me, please!
W: Take it easy, please! Sit here, now, what’s the matter with you And can I help you
M: I feel sick. I have a bad stomach-ache, and my head troubles me a lot.
W: Well, let me have a check. Open your mouth please. And say "Ah".
M: Ah! Is that serious, doctor
W: Not really. Did you have your supper this evening
M: No, I only had some bananas.
W: And the bananas were not quite ripe, fight
M: Well, yes, they were a bit green.
W: That explains it.
M: I wish I had not eaten them.
W: Take this medicine twice a day and I’m sure you’ll be fine.
M: Thanks, doctor. I’ll do as you told me. Good-bye, doctor.
W: Bye! And take care.
A. He had caught a very bad cold.
B. He had eaten some unripe bananas.
C. He had worked too hard recently.