Turn active into passive voice По учебнику starlight 8

3. "Building 84" would be shown us on the next stage of the tour by them.
4. The remaines of the stage craft were taken to be examined by them.
5. The craft was made of a material as light as plastic.
6. I was greeted at the airport by tour's friendly guide.
7. I was sent to report on a UFO discovery tour by the editor.
8. We were driven to the hotel along busy freeways by the guide.
9. Flying saucer was carpured on ranch in Roswell region by them.
10. The strange wreckage and aline bodies were found by people.