听力原文：Two. Which dress is Kate talking about？
Girl: Oh Mum, this dress is still dirty!
Woman: It can't be, Kate -- rye only just washed it.
Girl: Well it is. The mark on the collar has gone, but there's still a small one here — look it's at the front just below the button. It's where I spilt some Coke last week.
Which dress is Kate talking about？