It's Saturday afternoon. Betty goes to a shop. She wants to buy some cards. There are many people in the shop. Betty sees a nice pen on the floor.
"Whose pen is this?"She asks, but nobody answers.
"Is this your pen?" She asks a girl behind her.
"Let me have a look. Oh, yes, it is. My friend gives it to me on my birthday. Thank you very much."
— It's the ____.