1. Activa: The architects are designing a new skyscraper.

Pasiva: A new skyscraper (design) by the architects.

2. Activa: The committee has postponed the meeting until next week.

Pasiva: The meeting (postpone) until next week by the committee.

3. Activa: The marketing team will launch the campaign on Monday.

Pasiva: The campaign (launch) on Monday by the marketing team.

4. Activa: The researchers have discovered a new planet.

Pasiva: A new planet (discover) by the researchers.

5. Activa: The school principal will address the assembly.

Pasiva: The assembly (address) by the school principal.

6. Activa: The chef is preparing the special dish tonight.

Pasiva: The special dish (prepare) tonight by the chef.

7. Activa: The company had completed the project before the deadline.

Pasiva: The project (complete) before the deadline by the company.

8. Activa: The gardener has planted new flowers in the garden.

Pasiva: New flowers (plant) in the garden by the gardener.

9. Activa: The artist will exhibit her paintings at the gallery.

Pasiva: Her paintings (exhibit) at the gallery by the artist.

10. Activa: The engineers are testing the new engine model.

Pasiva: The new engine model (test) by the engineers.