I have (got) to go.我得走了.
A: I have many things to do. I have to go.
我有很多事要做，挂了。
B: Alright I'll give you a call tomorrow night.
好的，我明晚再给你打。

I'll talk to you soon.我们以后再聊。
A: It was very nice hearing from yew.
能和你聊聊很髙兴。
B: Thank you. Talk to you soon.
谢谢你，我们以后再聊吧。