【题目】
A.Boss and secretary.B.Operator and caller.
C.Librarian and student.D.Customer and repairman
在线课程【答案】D
【解析】
【原文】
W: How long will it take you to fix my smartphone?
M: I’ll call you when it’s ready. But it shouldn’t take longer than a week.
Q: What is the probable relationship between the speakers?