问题补充：
---I haven’t seen Lucy for three days. Is she ill?
---. Her sister told me she was in hospital.
A. I hope not
B. I’m afraid so
C. I don’t expect so
D. I’m afraid not.
答案：
A. I hope not
(答案→)B. I’m afraid so
C. I don’t expect so
D. I’m afraid not.
解析：根据上下文的意思，来选B
