Our school is no longer it was 10 years ago, it was not well equipped.
A. what, which
B. that , which
C. what, when
D. that, where
网友回答
A. what, which
B. that , which
(答案→)C. what, when
D. that, where
解析：本题考查表语从句和定语从句。no longer后面的表语从句不完整，it was 后面还缺少表语，根据意思是“20年前的样子”，后面一个句子是对20年前的补充说明，是一个非限制性定语从句，20年前学校设备条件不好，when 在定语从句中作时间状语。