F: When on earth did you get home last night? 11:30 or 12:00? ,M: Not really. My watch told me it was only 11:20 when I opened the door.
(A) F: The door shut at 12:00. (B) F: I didn't know you went to sleep at 11:30. (C) F: Yes, you were home around 11:20 last night. (D) F: I am really sorry, I did not catch that. Would you slow down, please?
C