This (red )skirt is Helen's划线部分提问This red skirt is （Helen's）

Which skirt is Helen's?
Whose is this red skirt?
再问： 对第二句海伦的提问要写两句你写了一句
再答： 按照你上面的句子，只能做一个句子。如果一定要做的话，那就是Whose is this red skirt?的同义句， Whose red skirt is this?
再问： 能写Whose skirt is this red
再答： 不行。 但下面的这句也行： Whose skirt is red?