1.I've heard so much about you.
　　久仰。
　　2.You've had a long day.
　　辛苦了。来源:考试大网
　　3.So we finally meet face to face.
　　我们终于见面了。www.Ｅxamda.CoM
　　4.Mr. Liu, I'd like you to meet Miss Li.
　　刘先生，这位是李小姐。
　　5.Mr. Chen is the friend I told you about.
　　陈先生就是我曾跟你提过的那位朋友。