dialogue: M: Hello, this is Tom Davis. I have an appointment with Dr. Jones at eight o'clock this morning, but I'm afraid I'll be half an hour late. W: That's all right. Dr. Jones doesn't have another appointment until nine o'clock.
question: When will the man most probably meet Dr. Jones?
choice: At 8:00. At 8:30. At 9:00.
answer: At 8:30.