听力原文:W: Hello, this is Betty Towery. May I speak with my son, please?M: I'm sorry, he'
听力原文:W: Hello, this is Betty Towery. May I speak with my son, please?
M: I'm sorry, he's still out on his route delivering letters. Shall I have him call you?
What did the woman's son do?
A.He's a reporter,
B.He's a salesman.
C.He's a repairman.
D.He's a mailman.