为何这句话是以what为主语的陈述语序？假如在宾语从句中，若以the matter为主语，what作表语，I don't know what the matter with you is.如此表达可以吗？
I don't know what the matter with you is. 如此的表达可以，但比较少见，更容易见到的是：I don't know what the matter is with you. 和 I don't know what‘s the matter with you.
请看海外英语图书出现的三种不同使用方法的例句：
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