Can you think of some cases students know clearly he should listen to the teacher but can’t do that ?
A. where
B. as
C. why
D. which
网友回答
(答案→)A. where
B. as
C. why
D. which
解析：考查定语从句：先行词是some cases，定语从句中缺少地点状语，用where引导定语从句，句意：你能想出学生清楚的知道应该听老师的但做不到的一些情况吗？选A。