定语从句do you know the reason why he didn't come?我把why换成that可以吗?变成 do you know the reason that he didn't come
问题描述:
定语从句do you know the reason why he didn't come?
我把why换成that可以吗?变成 do you know the reason that he didn't come
答
不行 做原因状语只能用why