Is it the years you worked in Africa as a doctor have a great effect on your literary wo

问题补充：

Is it the years you worked in Africa as a doctor have a great effect on your literary works?

A. that; where

B. that; that

C. when; where

D. when; that

答案：

A. that; where

B. that; that

C. when; where

(答案→)D. when; that

解析：该题既做到了把定语从句放到疑问句中，又做到了把定语从句放到强调结构里进行考查。第一个空是个定语从句，先行词是the year，when在定语从句里是时间状语；第二个空是it is …that…强调结构。