Peter, how are you?
Yes, I‘d like to.
I'm good. Thank you.
Not at all.
Sure.
How do you do?
How are you?
I’m fine.
How do you do?
I'm doing well.
I must be ___ now. Good-bye!
off
on
for
in
Glad to meet you, Helen.
It's getting dark.
Glad to meet you, too.
Nice to go with you.
It's wonderful.
I’m going to a meeting. So long!
See you later.
Bye-bye.
Take care.
All above.(以上皆可。)