F: Can I sit here and wait for the doctor please? ,M: Sure but you may have to wait for a while. ,F: When will the doctor return? ,M: He said he'd be back around 4:30 PM, so an hour from now.
(A) F: I am afraid I did not quite catch what you were saying. Please repeat it. (B) F: You said he will back at 3:30 pm? (C) F: Okay, now is 3:30 pm and I will go to the mall first and be back one hour later. (D) F: He must be back as it's 4:30 pm now.
C