F: Henry, don't forget to come to my party tonight. ,M: Don't worry, I won't. Will it begin at 7:00 PM? ,F: Yes. ,M: I'm afraid I'll be half an hour late. I've got an appointment around 6:00 PM.
(A) F: You will arrived around 6:00 pm? Well that's fine. (B) F: I know. You have a meeting and will be arrived at 7:30 pm. (C) F: I didn’t hear you. Please could you tell me again? (D) F: You'l  have to see a doctor and come at 7:30 pm. Is that right? OK.
B