Tom is next year so he is asking Mr. Smith a _ doctor who is 80 years old for some

问题补充：

Tom is next year, so he is asking Mr. Smith, a _ doctor, who is 80 years old, for some advice on how to spend the retirement life.

A. retiring, retired

B. retired, retiring

C. retiring, retiring

D. retired, retired

答案：

(答案→)A. retiring, retired

B. retired, retiring

C. retiring, retiring

D. retired, retired

解析：原句意思是，汤姆明年就退休了，所以他正在询问史密斯先生一些关于如何度过退休生活的建议。史密斯先生是一名医生，今年已经八十岁了。retired不表示被动意义，只表示完成意义。所以选A。