that, which, when, who, whom, whereI shall never forget those years 1I lived in the country with the farmers, 2has a great effect on my life.
【正确答案】
1、正确答案:when, 2、which
【答案解析】解析:这句话包含两个关系分句,第一个关系分句不缺少主要成分,且先行项those years表时间,故用关系副词when,在分句中作状语。第二个是非限制性关系分句,分句缺少主语,且先行项指代前面的内容,故用关系代词which。答案为when,which。