问题补充:
Great changes have taken place in that school. It is no longer it was 20 years ago, it was so poorly equipped.
AWhat; when
B. that; which
Cwhat; which
D. which; that
答案:
(答案→)A. What; when
B. that; which
C. what; which
D. which; that
解析: 考查表语从句和定语从句。It is no longer后面是表语从句,且从句缺少was的表语,要用 what引导,排除B,D;20 years ago是先行词,且定从it was so poorly equipped缺少时间状语,要用when引导。所以选A。