Вкаком веке был открыт лондонский зоопарк?

В 1830 годы и в интернете нельзя было найти изи просто

1. The girl was looked everywhere by them .
2. The boy wasn't listened by them .
3. The patients are looked after well by her .
4. Our address was asked by them .
5. These papers was looked through this morning by my father .
6. English lessons will be given me by my brother .
7. An interesting magazine has been shown me by my friend .
8. Everything was told him by his friend .
9. The famous lecture was greeted warmly by students .
10. A huge plant has been bult in the town by them .
11. The work must be finished by tomorrow by us .
12. When I fell ill , the doctor was sent by my mother .
13. The nearest way to the theatre was showed Helen by them .
14. Some good advices were given to patient by him .
15. The news has been told me by Mary .
16. The little boy was looked with interest by people .
17. The paper was examined attentively by them .

1. Перед экспериментом мы смешиваем вещества в колбах. 
Passive Voice: The substances are mixed by us.
2. В первый год обучения, мы изучаем математику и физику в университете.
Math and physics are studied by us.
3.Мы используем электричество в больших масштабах.
The electricity is used by us.
4. Мы проверим новый двигатель в лаборатории.
The new engine will be tested by us.
5. Эйнштейн представил новую концепцию времени, пространства и гравитации.
A new conception of time, space and gravitation was provided by Enstein.