Change the following sentences to passive by filling in the correct verb forms !

1. The secretary opens the mail every morning.
   The mail by the secretary every morning.
2. A gardener is watering the flowers.
   The flowers by a gardener.
3. Jimmy walks the dogs every day.
   The dogs by Jimmy every day.
4. Heavy rain had caused the flood.
   The flood by heavy rain.
5. Police officers were examining the evidence.
   The evidence by police officers.
6. A spokesman gave an interview to the reporters.
   The reporters an interview by a spokesperson.
7. A guide will take you to your seat.
   You to your seat by a guide.
8. We are going to announce the results on Friday.
   The results on Friday.
9. The new manager has made some changes.
   Some changes by the new manager.
10. The students are making arrangements for the party.
    Arrangements for the party.
11. They clean the windows every week.
    The windows every week.
12. They had invited him to the cinema.
    He to the cinema.