why后面加什么从句
why引导定语从句和名词从句。
例如
The reason why he was late was that he got up late this morning.
他迟到的原因是他今天早上起床晚了。
I don\'t know why she isn\'t here.
It\'s easy to see why he is popular.
不难看出他为何会这样受欢迎。
My flight was cancelled, that\'s why I\'m late.
我的航班被取消了，这就是为什么我会迟到的原因。
I don\'t know why she isn\'t here.
我不知道她为什么不在这。