你为什么马上要回家；
明天你可能不去机场送她；
最后祝她旅途愉快。
［参考范文］
Dear Mary.
I have to go home at once because my father phoned me just now, he said that my mother was badly ill and we need to send her to hospital. I'm sorry to tell you that maybe tomorrow I can't go to the airport to see you off. I wish you a good trip.、
Li Ming
