问题补充:
The reason he was late for work was he didn’t get up early.
A. for, because
B. which, because
C. why, that
D. for, that
答案:
A. for, because
B. which, because
(答案→)C. why, that
D. for, that
解析:考察定语从句和表语从句。本题第一空why引导的是定语从句,对前面的先行词the reason进行修饰。Why在句中做状语。第二空that引导的是表语从句,只是一个引导词,不在句中充当任何成分。句意:他上班迟到的原因是他起床晚了。故C正确。