---Is Mr. Green really badly ill?-. He’s in the hospital.A. I don’t think soB. I agree

问题补充：

---Is Mr. Green really badly ill?

---. He’s in the hospital.

A. I don’t think so

B. I agree with you

C. I hope so

D. I’m afraid so

答案：

A. I don’t think so

B. I agree with you

C. I hope so

(答案→)D. I’m afraid so

解析：根据上下文的联系，选择D符合题意。