9. It is very nice of you to come and see me off.
您來給我送行真是太客氣了。
還能這樣說：
You are so nice to send me off.
You are so kind to see me off.
諺語：
To see is to believe.
眼見為實。
10. Goodbye and have a good flight.
再見，祝你一路順風。
還能這樣說：
Goodbye and I wish you a very good journey.
Goodbye and all the best.
應用解析：
a flight of ambition 雄心勃勃；
a flight of fancy 想入非非，異想天開；
in flight 在飛行中；
in flight from 逃避，逃開；
in the top flight 居首要地位；領先；
make a flight 飛去；迅速離開
11. Please give my best regards to your family.
請向你的家人轉達我的問候。
還能這樣說：
Please convey your family my best regards.
Please express my best wishes to your family.
應用解析：
as regards 關于，至于；
have high regard for 極為尊敬；重視；
in regard of 關于；
out of regard for 出于對……的考慮；
pay regard to sb. 尊重某人；注重到某人
12. I'm afraid I must be off.
恐怕我得走了。
還能這樣說：
I'd better be going now.
It's about time I am going.
應用解析：
far off 遠；
get off 脫衣；下馬；
fall off （從馬上）掉下來；下降，跌落
look off 掉轉視線
13. Drop in again when you are free.
有空再來啊。
還能這樣說：
Please call on me whenever you have time.
Just pay a short visit if you have time at any time.
諺語：
There's no such thing as free lunch.
天下沒有免費的午餐。
14. Take your time.
請慢走。
還能這樣說：
Take care.
Mind your steps.
15. Remember me to your parents.
代我向你父母問好。
還能這樣說：
Best wishes to your parents.
Mention me to your parents.
應用解析：
remember of 記得，想起；
remember oneself 恢復鎮定；仔細地想一想；反省；
remember one to sb. 代向某人致意
16. The time will come and I must say good-bye.
我不久將向大家告別。
還能這樣說：
I have to leave soon.
I'll take leave in a short time.
應用解析：
at any time 隨時；無論何時；
at no time 永不，在任何時候都不；
at one's time of life 在這個年紀