1. A. Privacy: a wall may separate neighbours and might need repairs but it also can help keep people's privacy.
2. D: Aphorism is a short statement of truth, opinion, insight, or good advice presented with a little bit of humor.
3. D: He did not receive his medals for acts of bravery. He received the <em>Bronze Star because they recognized his valor for making possible for the readers to know more about the situations the soldiers faced in the war.</em>