— What is your father?— He’s .A. fine B. forty C. thin D. a doctor

问题补充：

— What is your father?— He’s .

A. fine

B. forty

C. thin

D. a doctor

答案：

A. fine

B. forty

C. thin

(答案→)D. a doctor

解析：句意：你爸爸实干什么的？他是医生。Fine好的，forty四十，thin瘦的，a doctor医生。前面问句是在问职业，所以选D。