问题补充:
The reason he was absent from class was his mother fell ill this morning.
A. for; that
B. why; that
C. for; because
D. why; because
答案:
A. for; that
(答案→)B. why; that
C. for; because
D. why; because
解析:考查定语从句和表语从句:句意:他昨天旷课的原因是他妈妈早上病了。先行词是The reason,定语从句缺少原因状语,用why引导定语从句,第二空是表语从句,主语是the reason的时候,表语从句用that引导,选B.