【单选题】听力原文:W: Harry, It's polite to call friends before a visit, isn't it? M: You are absolutely right with that! People in the West usually don't like surprise visits. But close friends often drop in on ea...
A.
Surprise visits are acceptable among close friends.
B.
Surprise visits are not welcome even among close friends.
C.
People expect even their close friends to call them before their visits.
D.
Dropping in on your friends is considered good manners.