为什么是is It(is ) black and white.为什么是is,不是are?

为什么是is It(is ) black and white.为什么是is,不是are? what is that?It is C.为什么是 It is? It is a black car 划线句子提问划线处为 black it is a white and black dog.black提问 为什么是what fun it is to. white ,black ,it,and,is,连成一句话 it is black改为一般疑问句 whose dog is it its （MS.Black) it is clean when it is black.it is dirty when itis white.what is it It is clean when it is black.It is clean when it is black.It is dirty when it is white.what's it? Is this your book?Yes,it is为什么是it is 而不能说it's what do you think is it?为什么是is it而不是it is That bag is black.It is ______.A.black bag B.a black C.a black bag 改错句 Is your pen black --------------------yes ,it is What color is your( t )?——It is black (HER HERS)cat is small,and it is black.kuai Whose watch is this?Is it black（）? this is Mr Black,__I think has something to tell us. 为什么是who ,不是whom