【题目】The reason ________ he didn’t come was ________ he was injured.
A. that, becauseB. why, that
C. why, becauseD. that, that
在线课程【答案】B
【解析】
试题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。