A:Good evening, Mr. Wu.
B:Good evening, Mr. Smith.
A:Have you met my wife, Mary?
B:No. I haven’t had the pleasure.
A:Mary, this is Mr. Wu, my new Chinese friend.
B:How do you do, Mr. Wu? Welcome.
A:How do you do?
B:Have a glass of wine, Mr. Wu? And let me introduce you to some of my guests.