There is a popular view in cities, strangers are less likely to help an elderly person.
A. that
B. whether
C. why
D. how
网友回答
(答案→)A. that
B. whether
C. why
D. how
解析：考察同位语从句。本题同位语从句前面的名词是a popular view后面的同位语从句that in cities, strangers are less likely to help an elderly person.解释该名词的内容，that只起引导和连接作用，没有任何意思，在句中不充当任何成分。而whether表示的是疑问的不确定语气，CD两项与上下文的语义不配。故A正确。