01.How's everything? (informal)/ How are things with you? (informal)/ How's it going? (informal) / How's life been treating you? (informal)
一切都好吗？(非正式）
02.How's everything going?/How have you been?/How are you doing?
最近还好吗？
03.Let me introduce my friend to you./ Let me introduce you to my friend.
我来为你介绍一下我的朋友。/ 我来把你介绍给我的朋友。