问题
选择题
In English class, our teacher often creates an environment _____ we are given the opportunity to solve problems ourselves．
A．when
B．which
C．where
D．that
答案
Ｃ
考察定语从句。本定语从句是一个被动语态的形式，结构很完整，故使用关系副词，定语从句的先行词是environment，所以where正确。