是用what color is Amy's classmate skirt?还是用 what color is Amy's classmate's skirt?

是用what color is Amy's classmate skirt?还是用 what color is Amy's classmate's skirt? the (red) bag is Amy sister's.(对划线部分提问)which bag is Amy sister's?为什么用which bag提问,划线部分是red对颜色提问不是用What color?不好意思,请详细点回答, what color------Amy's pants?-------purple. what is Amy'shobby? what is amy doing? what Color is it ?用英语回答 what color is it what color is ()pen What color is it what color is it What color is it what color is it what color is what color is your favorite?用is还是用are是由color(colors)决定还是favorite(favorites)决定 是What,color,is,it?还是What,color,it,is?哪个对啊 英语中,what color is it?为什么不能是what color it is? your pencil?a是what is b是what color is c是what isyour pencil?a是what is b是what color is c是what is color d是how color What color is your bag 用颜色是红色的回答?急What color is your bag 回答的颜色是红色 如何回答