问题补充:
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:
A. when
B. which
C. where
D. that
解析: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。