The document discusses asking and giving opinions. It provides examples of formal and informal ways to ask for and express opinions, such as "Do you have any idea?" formally or "What do you think about..." informally for asking opinions and "I personally believe..." formally or "I think it's good" informally for giving opinions. It also includes a sample dialogue between two people discussing their opinions on a school banning smartphones. One person agrees with the ban due to smartphones interrupting classes and causing unnecessary competition over devices.