I‘m afraid I must be off/be going/be leaving now.恐怕我得走了./ I think I must be off/ be going/ be leaving now.我看我得走了./ Well， It’s getting late.噢，天已晚了./ I‘ve got to go now.现在我必须得走了./ Maybe we could get together sometime.也许我们什么时候还能再聚一聚.
Thank you for coming.多谢你的光临./ Yes， I‘ve enjoy it.对，我很开心./ My pleasure， too.这也是我的荣幸./ Could you stay a little longer? 你能再呆一会儿吗?/ In that case， I won’t keep you.那么我就不留你了.
Good-bye! / Be seeing you soon. Bye! / Bye! / Bye for now. / See you. / See you later. Bye-bye! 再见!Good night.晚安!Have a pleasant journey!/ Wish you a pleasant journey.祝你旅途愉快!Don‘t forget to give me a ring.不要忘记给我来电话.Remember to give me a ring.记住给我来电话.
Good-bye!再见!/ Good night!晚安!You too. / Same to you.你也一样.So long. Take care.再见!保重.