---Hello! 458-6777.
---Hello! .
---Yes, please hold on.
A. May I speak to Jack?
B. Jack isn’t in.
C. What can I do for you?
D. What’s your name?
网友回答
(答案→)A. May I speak to Jack?
B. Jack isn’t in.
C. What can I do for you?
D. What’s your name?
解析：根据对话内容，可判断出是电话用语，故选答案为A