问题补充:
It’s helpful to put students in a situation they can learn how to cooperate with each other.
A. that
B. when
C. which
D. where
答案:
A. that
B. when
C. which
(答案→)D. where
解析:句意:将学生置于可以让他们学会怎么彼此合作的形势下是很有帮助的。这里使用了定语从句,先行词是situation,定语从句中不缺主宾表,缺少的是地点状语,用where引导定语从句,所以选D。