2 Rewrite the sentences using Present, Past and Future Perfect Passive. Add by where necessary. 1. The children have scattered about a lot of things. 2. They had cancelled the game. 3. Our father has put all the books in the bookcase. 4. I have invited some friends to tea. 5. He has paid his taxes. 6. The room looked nice. Somebody cleaned my room. 7. I haven’t yet translated the article.