单项选择题
[听力原文] M: Hello. This is John Green. May I speak to Sally, please W: This is Sally speaking.
A.Talking about John. B.Talking about Sally. C.Making a call. D.Saying "hello".
A.Next Wednesday. B.Next Thursday. C.Next Monday. D.Next Friday.
A.About 100 meters. B.About 300 meters. C.About 200 meters. D.About 400 meters.