I. Rewrite the sentences in the passive 1.They will construct some new airports on islands. ........................................................................................... 2.The new president might fulfill this promise as quickly as people would like. ............................................................................................. 3.They are going to find out the mystery. .............................................................................................. 4.You can buy videos like this one anywhere. ................................................................................................. 5. Someone will tell you when you go in to see the doctor. ................................................................................................... 6. They should have finished the hotel by the time you arrive. ....................................................................................................... 7.Where will your company send you next year? ....................................................................................................... 8.You should open the wine about three hours before you use it. ........................................................................................................... 9.Previous climbers had cut steps in the ice. ........................................................................................................ 10. We use this room only on special occasions. ...................................................................................................... 11.You must not hammer nails into the walls without permission. .................................................................................................. 12.In some districts, farmers use pigs to find truffles. ........................................................................................... 13.Someone switched on a light and opened the door. ............................................................................................... 14.They are pulling down the old theatre. .......................................................................................... 15.The mob broke all the shop windows in recent riots. ............................................................................................... 16. Someone will serve refreshments. ............................................................................................. 17.People must not leave bicycles in the hall. ............................................................................................... 18.Members may keep books for three weeks. After that they must return them. .................................................................................................. 19.The burglars had cut an enormous hole in the steel door. .................................................................................................. 20.They rang the church bells as a flood warning. ........................................................................................................