Переделайте в страдательный залог и нужно перевести, это по английскому, ну можно…

1. These facts are memorized by someone.2. A beautiful city was situated on a river. — Тут причастие уже в страдательном залоге.3. A lot of skyscrapers in New York was built by the people. Или 3. Many skyscrapers in New York were built by the people.4. A little polar bear lived in a city zoo. — Имхо, перевести в страдательный нельзя.5. Some endangered species were saved by the people.6. Daisies and pansies are watered by my grandma in her garden.7. Last spring Dick was on a tour through Australia. — Имхо, перевести в страдательный нельзя.8. A small island in the middle of a lake was discovered by them.