Change into passive. 1. the new suprised us all. 2. is the teacher correcting the exems right now? 3. someone has sent john a mysterious letter. 4. where did they find the book? 5. the taxi friver drove us to the airport. 6. many people have seen a ufo in this area. 7. have thay watered the plants? 8. someone stole my purse while i was doing the shopping. 9. the secretary has already sent all the documents to mr. smith. 10. they have offered michael an excellent job in a british company. 11. the police could arrest the bank robbers when they were crossing the border. 12. someone has used the computer without permission. 13. my grandmother is baking a delicious cake. 14. the maid was cleaning my hotel room when i came in.