Great changes have taken place in that school. It is no longer it was 20 years ago, it was so poorly equipped.
A. that; which
B. what; when
C. what; which
D. which; that
网友回答
A. that; which
(答案→)B. what; when
C. what; which
D. which; that
解析：考查表语从句和定语从句。本题第一空是what引导的表语从句，what在句中充当系动词was后面的表语。第二空是一个定语从句，定语从句的句子结构很完整，就使用关系副词when引导这个定语从句。句意：在那所学校里已经发生了巨大的变化，它已经不再是20年前的那所学校了，在那时它的设备很差。故B正确。