6. I would use recycling boxes if there were any.7. I would use e-bill in order to protect the environment.8. I would throw away my garbage if there were nobody there.9. There is nothing wrong with pouring waste cooking oil into the sink.10. I think we will not fi nd a place to have picnic within a few generation.11. I think everybody should sow a tree in his or her life.12. I think seeds should be kept for the future of life.