Conversation

A

Smith: Well. I have an appointment now.
Zhang: I'm in quite a hurry too.
Smith: Good to see you. Goodbye.
Zhang: Goodbye. Take care of yourself.

B

Zhang: I guess I'd better go now.
Smith: I've got to be going now too.
Zhang: In that case, I'll be seeing you.
Smith: So long. See you later.

C

Smith: It's getting late, and I have to go now.
Zhang: We're sorry you have to leave.
Smith: Please excuse me, won't you?
Zhang: Certainly. Come back soon.

D

Zhang: I'm glad to have met you.
Smith: Thank you. It was nice to have seen you.
Zhang: I hope we can get together again.
Smith: Yes. I'll be looking forward to it.

E

Smith: I think I have to leave now.
Zhang: Must you go soon?
Smith: I'm afraid I really have to .
Zhang: Well, it was fun to get together again.
　
Sentence
A
I have a meeting soon.
I have an engagement soon.
I have an engagement very shortly.
I have an date very shortly.

B
I think I'd better go now.
I think I should go now.
I think I ought to go now.
I think I must go now.

C

It's getting dark.
It's getting dark outside.

D

I've to go quite soon.
I must go quite soon.
I must leave quite soon.
I've got to go leave in a few minutes.

E

It was fun to get together again.
It was exciting to get together again.
It was exciting to talk to each other.