A：I'm afraid I have to return this sweater.恐怕我得把這件毛衣退掉。
B：May I ask if there's anything wrong with it?請問毛衣有什么毛病嗎?
A：You see,there is a run at the neck.你看，脖子這塊脫針了。
B：Oh,sorry.But do you want to change it for another one?哦，對不起。你想換一件嗎?
A：No,thank you.不想換，謝謝你。