What is she going to doing这句话哪错了

What is she going to doing这句话哪错了 what is she going to She is going to take a trip yesterday.这句话错在哪里了 She is going shopping.What is she going to buy? I’m going to find out what the hell she thinks she’s doing这句 is what to she do going what is she going to buy? what is she doing? What's she doing now?She is putting on her coat.这句话有错吗? what is she going she is going to marry him 这句话不对吗?为什么答案是she is going to marri What does Mary doing?She is eating.错在哪