Помогите подалуйста сделать предложения в Passive Voice

The office was painted by someone last week.The accident was seen by several people.The post is not delivered on Sundays.The trees will be planted by the students this summer.She is helped with her English every weekend.Soft drinks will be sold (by us) in this place. The Christmas party was organized by the children.The dogs are trained by a woman.The exams will be marked by two different teachers. This game is played by people of all ages.The match was watched by a large crowd. A report will be written by your manager.