听力原文:W:What can I do for you, sir?M:Well, I'd like to buy some bread. Q:What is the pr
听力原文:W:What can I do for you, sir?
M:Well, I'd like to buy some bread.
Q:What is the probable relationship between the two speakers?
(7)
A.Doctor and husband.
B.Shop assistant and customer.
C.Librarian and student.
D.Boss and secretary.