The reason________he didn't come was _____he was seriously injured in a car accident.说出原因给分!
问题描述：
The reason________he didn't come was _____he was seriously injured in a car accident.
说出原因给分!
答
why that
他没有来的原因是……
the reason why+从句，固定用法，……的原因
后面的that是引导宾语从句
答
that
that
The reason________he didn't come 他没来的原因，引导什么的原因
was _____he was seriously injured in a car accident.引导原因
不充当成分
答
前面填why 后面填that
前面是定语从句表原因
后面是表语从句..除去中间的多于部分是the reason was that he was seriously injured in a car accident..原因是他在车祸中受重伤..由于从句部分不缺成分所以用that