问题补充:
I don’t know the reason you were late for the meeting, but I’m sure someone will tell me you don’t want to explain.
A. why; that
B. why; what
C. for which; which
D. for which; that
答案:
A. why; that
(答案→)B. why; what
C. for which; which
D. for which; that
解析: 第一空,考查定语从句,先行词为the reason,从句中缺少原因状语,所以用why/for which,第二空考查名词性从句中的宾语从句,explain 后缺少宾语,所以用what,故选B。