填空题
Linda: Happy birthday, Mary!
Mary: (51)
Linda: Who is the tall man next to your brother
Mary: Didn’t you meet him before
Linda: (52)
Mary: Oh! Then let me introduce you to him now, Steve, (53) .
Steve: Hi, Linda. (54)
Linda: I’m glad to meet you, too. Can’t we sit down somewhere and talk
Steve: (55) Let’s sit over there.