A

Alan：Excuse me, Mr. Green. I'm Alan Smith, a student from Mr. Clark's class. Can you help me?

Mr. Green：Yes.

Alan：I lost my watch this morning. It's from my grandfather.

Mr. Green：What color is it?

Alan：It's green.

Mr. Green：Where did you lose it?

Alan：In the library.

Mr. Green：Oh，I see. What about your phone number?

Alan：435—7062.

Mr. Green：OK. I'll call you if there is good news (消息).

Alan：Thanks for your help.

Mr. Green：You're welcome.

根据材料内容判断正误。