1. Activa: The organizers canceled the event due to rain.

Pasiva: The event (cancel) due to rain by the organizers.

2. Activa: The chef is preparing a new recipe.

Pasiva: A new recipe (prepare) by the chef.

3. Activa: The company will introduce the new model at the trade show.

Pasiva: The new model (introduce) at the trade show by the company.

4. Activa: The students submitted their projects on time.

Pasiva: The projects (submit) on time by the students.

5. Activa: The photographer took beautiful pictures at the wedding.

Pasiva: Beautiful pictures (take) at the wedding by the photographer.

6. Activa: The company has updated all computer systems.

Pasiva: All computer systems (update) by the company.

7. Activa: The teacher will explain the new topic tomorrow.

Pasiva: The new topic (explain) tomorrow by the teacher.

8. Activa: The engineers are developing a new engine.

Pasiva: A new engine (develop) by the engineers.

9. Activa: The gardener has planted several new flower beds.

Pasiva: Several new flower beds (plant) by the gardener.

10. Activa: The author wrote a sequel to her successful book.

Pasiva: A sequel to her successful book (write) by the author.