阅读理解, 判断正误。

A：Good morning, Su Hai.
B：Good morning, Nancy.
A：What's this?
B：It's a green umbrella.
A：Is this your umbrella?
B：No, it isn't. My umbrella is red. I think it's Su Yang's.
A：Where's your sister?
B：She's in the computer room.
A：May I have this umbrella for her?
B：Sure. Here you are.