A、  B、  C、  C问题以疑问词who来询问那个留着胡须的人是谁。(C)回答了那个人的身份，因此是正确答案。(A)和(B)的回答都与题意不符。

Are you going to the talk this evening?
(A) I haven’t decided yet.
(B) Yes, he talked to me about it.
(C) I’d like to, some day.

Who is the man with the long beard?
(A) Hal had his cut.
(B) Sean will manage the client.
(C) That’s Dan, the new manager.