Change Active into Passive.a. The postman delivers letters. - The letters are delivered by the postman.b. They built this church in 1815. - The church was built in 1815.c. The policeman has arrested the thief. - The thief has been arrested by the policeman. d. The Queen will open a new library. - A new library will be opened by the Queen. e. He is writing a book. - ...f. You may open the window. - ...g. He must repair the car. - ...h. Someone is helping her with the homework. - ... ​