— Your mother won’t like this dress you know.— I don’t care what she thinks.A. How come?

问题补充：

— Your mother won’t like this dress, you know.

— I don’t care what she thinks.

A. How come?

B. So what?

C. So why?

D. So how?

答案：

A. How come?

(答案→)B. So what?

C. So why?

D. So how?

解析：考查交际用语。A怎么会？B那又怎么样？C为什么？句意：—你知道你的妈妈不喜欢这件衣服的。—那又怎么样？我不在乎她的想法。根据句意说明B正确。