听力原文:M: Excuse me. Madam.W: Yes?M: Does this bus go to Zhongshan Road?W: Yes, I think
听力原文:M: Excuse me. Madam.
W: Yes?
M: Does this bus go to Zhongshan Road?
W: Yes, I think so.
M: Thank you.
W: You're welcome.
What is the relationship between the speakers?
A.They are friends.
B.They are strangers.
C.They are brother and sister.