Raising children is said to be a job parents receive the least formal training.
A. in which
B. for which
C. where
D. to what
网友回答
A. in which
(答案→)B. for which
C. where
D. to what
解析：这题考查定语从句的介词+关系代词的用法：先行词是a job，定语从句中缺少的是for the job，所以用for which，选B。句意是：抚养孩子是父母为此接收的最少训练的工作。