Can you think of some cases people are likely to tell lies?
A. that
B. as
C. where
D. when
网友回答
A. that
B. as
(答案→)C. where
D. when
解析：考查定语从句的关系词。先行词是cases，且定语从句 people are likely to tell lies缺少地点状语，所以用where引导。通常一些抽象名词作先行词时，例如case，situation,position,stage…,并且定语从句缺少状语，则定从用where引导。选C。