People are directly responsible for most of the pollution in the world. Pollution is a blight on the modern world which may have unforeseen consequences.
During the discussion, all team leaders offered their ideas. The school board opened the floor for discussion and questions. Miss Malley asked two quieter students to participate more in classroom...
I think you can't actually make a proper sentence using the word it. But if someone asks you a question like "what is that box for?" Than you can say like "there is toys in it" That is how I will use...