为什么because of后可以跟what you have done

为什么because of后可以跟what you have done You are afraid because of what I have done.这是什么从句? What have you done? because of because of后可以 跟动名词短语么? Think what you have done in the past.为什么不是what have you done What have you had done?为什么不是What have you done? what have you done today What would you have done what have you done lately? look what you have done what have you done this what have you done是什么意思