The reasonhe explained for his being late ishe got up late.A. why thatB. that thatC. for

问题补充：

The reasonhe explained for his being late ishe got up late.

A. why, that

B. that, that

C. for which, because

D. that, because

答案：

A. why, that

(答案→)B. that, that

C. for which, because

D. that, because

解析：考查从句。本题第一空是定语从句，先行词是the reason，后面的定语从句中的动词explain后面缺少宾语，故使用that引导先行词作为宾语。第二空that引导的是一个表语从句，后面的句子结构很完整，只需要一个连接词起连接作用即可，that在名词性从句中只起连接作用，不充当任何成分。句意：他给出来的迟到的原因是他起床晚了。故B正确。