We showed great pity to the poor old man, for life was hard in the past.
A. whom
B. whose
C. who
D. that
网友回答
(答案→)A. whom
B. whose
C. who
D. that
解析：考查定语从句。介词 + 关系代词，for whom = for the poor old man。此句相当于life was hard in the past for the poor old man.句意：我们对那位老人表现出极大的同情，过去生活对他们来说很艰难。