that, which, when, who
shall never forget those years____ I lived in the country with the farmers,____ has a great effect on my life.
【正确答案】：when which
【题目解析】：本题考查关系代词的选择。【要点透析】这是一个含有两个定语从句的句子。第一个定语从句的先行词是 those years,表示时间,且在定语从句中作状语,要用关系副词when;第二个句子是非限制性定语从句,要用关系代词 which指代前面内容。
