A、Mr. Smith. B、Miss White. C、Miss Smith. D、Mr. Brown. C题目询问的是谁打了电话。由对话中女士所说：“布朗先生，一位叫史密斯，玛丽·史密斯的人打过电话给您。”可知选项C(史密斯小姐)是正确答案。

M: Any message for me, Miss White?
W: Just one, Mr. Brown. You had a phone call from someone called Smith, Mary Smith.
M: Smith? I don’t know anyone called Smith. What did she say?
W: She wouldn’t say anything, but it sounded important. I told her you would call her as soon as you came back.
M: Well, I think I’d better do it then. Have you got her telephone number?
W: Yes, it’s 44356793.
M: Have you written it down?
W: I always do. It’s on your desk.
M: Thank you.
6. Who made the telephone call?
7. What did the woman take down?