问题补充:
The reason he didn’t come was he was injured.
A. that; because
B. why; that
C. why; because
D. that; that
答案:
A. that; because
(答案→)B. why; that
C. why; because
D. that; that
解析:第一空考查定语从句,此处the reason是先行词,其在定语从句中作原因状语,用why;第二空考查表语从句,he was injured是一个完整的句子,不缺成分,故用that;所以选B。句意:他为什么没来的原因是他受伤了。