The "Passive Voice" material is based on the Task Cards with the same title, available in the shop. The Slides are designed for larger groups of students as well as for the teachers who do not have the time or the need to creat self-study materials. 
 
The presentation is composed of  60 sentence slides with the correct answer. After your students give you or write down their answers simply click and reveal the correct one. There are also slides with rules of sentence formation.
 
Mac Keynote users will be able to go back to the sentence slide each time they click on the rules slides. Windows PowerPoint users will need to go back to the Home Page and click the sentence number they were working on to go back to it. 
 
The material is a .zip file in which you'll find two options:
- Keynote presentation
- PowerPoint presentation
 
This material in a translation activity, and will work for students with Polish as their L1. 
 
Read more about the material here.