The old couple, had been admitted to university, were living a hard life．
A. both their children
B. both of whom children
C. both of whose children
D. whose their children
网友回答
A. both their children
B. both of whom children
(答案→)C. both of whose children
D. whose their children
解析：考查定语从句。句中先行词为the old couple，both of whose children即老夫妻的两个孩子都。句意：老夫妻的两个孩子都被大学录取了，过着艰难的生活。