Answer:
1. Protesters angrily waved slogans at the president's car as it raced past on the way to the airport.
2. We're asking people to sign a petition demanding investment in the local sports facilities.
3. Henry decided to join in on the demonstration, which marched across the city to the parliament building.
4. We are going to attend a rally in the town centre to demand equal pay.
5. Young people are being urged to vote in next year's elections. It's important to express our views in the ballot box.
6 I intend to run in this year's election for student representative. I hope you will elect me.