问题补充:
The reason she didn’t come to school was
she had to look after her sick mother.
A. because ; why
B. that ; because
C. why ; that
D. which ;that
答案:
A. because ; why
B. that ; because
(答案→)C. why ; that
D. which ;that
解析:考查定语从句及名词性从句。考查the reason why … was that ……..的原因是……。Why引导定语从句,that引导表语从句,故选C。