Change the sentences from the passive voice to the active voice.
Dear Student.
Regards.
- The principal sent the email.
- The entire class is reading The Prisoners of Azkaban.
- A team from NASA will present the research.
- China will launch a new artificial moon in 2020 to save electricity and to ensure lights during power failures.
- The MCD workers will collect and sort all the garbage from the apartment complex today.
Regards.