Перевести речення у пасивний стан (been) ​

The books have already been taken to the library by me.Those letters have just been posted by her.My test has already been checked by the teacher.The key has been lost by him.All the windows have been opened by us.Bread has been brought by me on the way home.This exercise has been done by me.The present has been opened by me.The job has been finished by me.The milk has been drunk by the cat.