1. James Cook discovered Australia -> Australia was discovered by James Cook.
2) People grow coffee in Brazil. -> Coffee is grown by people in Brazil.
3) Karl Benz invented the first car. -> The first car was invented by Karl Benz.
4) People play Monopoly all over the world. -> Monopoly is played by people all over the world.
5) Steve Jobs made the first iPhones. -> The first iPhone was made by Steve Jobs.
6) People kill turtles for their shell. -> Turtles are killed for their shell by people.