This document is from Chinese Link Lesson 3 and discusses nationalities, languages, and sentence patterns in Mandarin Chinese. It contains 3 patterns: (1) asking what someone's nationality is using "nǎ guó rén", (2) asking if someone can speak Chinese using "huì shuō zhōngwén ma", and (3) responding that one can or cannot speak Chinese. It provides examples of questions and responses for each pattern in pinyin and characters.