F: I finished the report. May I leave the office early today? I have to pick up my parents at the airport. ,M: But you are supposed to meet Mr.Black at 4:00 o'clock, aren't you? Can't you ask somewhere else to go to the airport?
(A) F: But I have already finished writing the report. Why can I go pick up my parents at the train station? (B) F: Oh, I forgot about that. I will meet Mr. Black then. (C) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) F: OK, I'll ask Mary to pick up my parents at the train station then.
B