1 不对,应该是 I don't know who you are .
2 对,因为 what is the matter with you?What is wrong with you 本身就是陈述语序,故用于宾语从句中不用改变.
如果不明白,请再问；如果对你有所帮助,
请点击本页面中的“选为满意回答”按钮,为什么what is the matter with you?这句话是陈述句？还有没有相同的例子呢因为what 既是引导词也是从句的主语，类似的还有what 's wrong with you ?what 's the troble with you ?那么what's your job呢？能不能说的再清楚一点让我好区分一点呢？这句不同了，主语是your job ，故变宾语从句时是：Can you tell me what your job is ?