Which sentence does not use third person?

The sentence that does not use third person is the one that begins with "I." This indicates the first person perspective, where the speaker refers to themselves directly. In contrast, the other sentences refer to others using third person pronouns such as "he," "she," and "they," which describe actions performed by others rather than the speaker themselves. First person allows the speaker to express their own experiences or actions, making it distinct from third person, which focuses on others. Understanding these personal pronouns is essential in distinguishing between perspectives in language usage.