A、Before 9 o’clock. B、At 10 o’clock. C、At about 9:15. D、After 9:50. C

M: I can’t remember the due date for our final exam.
W: I think it is the last day of class, but class master Smith said not to wait until the last moment to prepare it.
Q: What did Smith suggest to the student?

M: Hello, this is Tom Davis. I have an appointment with Mrs. Jones for 9 o’clock this morning, but I am afraid I’ll have to be 15 minutes late.
W: That’s all right, Mr. Davis. She doesn’t have another appointment schedule until 10 o’clock.
Q: When will Mr. Davis most probably meet Mrs. Jones?