HSK 3.0 Level 2 trắc nghiệm

先生 (Mr.) follows the surname for a polite male address: 王先生 = Mr. Wang.

您 is the polite/respectful form of 你, used with elders, strangers, or in formal situations.

贵姓 is the polite way to ask someone's surname. 姓 = surname; 名 = given name.

不好意思 means 'sorry / excuse me' in a polite, mild way. 谢谢 = thank you; 请 = please.

介绍 means 'to introduce': 我来介绍一下 = Let me introduce (someone). 认识 = to know/meet.