问题
选择题
Great changes have taken place in that school. It is no longer it was 20 years ago，_____ it was so poorly equipped．
A．what；when
B．that；which
C．what; which
D．which；that
答案
答案：A
题目分析：考查表语从句和定语从句：句意：那个学校发生了巨大的变化，它不再是20年前的样子了，那时它里面的设备很差。第一空是表语从句，表语从句中缺少表语，用what引导，第二空是定语从句，先行词是20 years ago，定语从句中缺少时间状语，用when引导定语从句，选A。