One reason____he told me for his being late is that he didn't catch the early bus.这里为什么填that 而不填why?请详细说明.
问题描述：
One reason____he told me for his being late is that he didn't catch the early bus.
这里为什么填that 而不填why?请详细说明.
答
因为WHY是副词，不能作TELL 的宾语
答
that 引导定语从句。
答
why ===原因
that=== One reason