M: Now let's stop talking and get going. I need to be in my office in 15 minutes or I'll be late for a meeting. ,F: OK. Bye.
(A) M: I will leave my office and go home in 15 minutes. Bye. (B) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (C) M: I need to give a lecture in 15 minutes, so I should go now. Bye. (D) M: I need to be in my office and attend a meeting in 15 minutes, so I should go now. Bye.
D