1. The document discusses question tags, which are phrases added to statements in English to invite confirmation or opinion. 2. Question tags are composed of two parts - the auxiliary or principal verb in negative or affirmative form depending on the statement, and a pronoun determined by the subject with a question mark. 3. Examples are provided of common question tags like "isn't it?" and "can they?" along with an evaluation asking the reader to identify the correct question tag for different statements.