Change the sentences into Passive 1.People in China speak Chinese
2. Explorers explore new lands
3. The sea separates these two countries.
4. She speaks two foreign languages.
5. We drink only fresh water.
6. My hamster often hides his food.
7. Firemen save people who are in danger.
8. Tigers often kill domestic animals.
9. People kill tigers for their beautiful skin.​

1. Chinese is spoken by people in China.
- Explanation: In the passive voice, the object of the active sentence becomes the subject of the passive sentence, and the subject of the active sentence becomes the object of the passive sentence. Here, "Chinese" is the object of the active sentence, so it becomes the subject of the passive sentence. "People in China" is the subject of the active sentence, so it becomes the object of the passive sentence.

2. New lands are explored by explorers.
- Explanation: The same reasoning applies here. "New lands" is the object of the active sentence, so it becomes the subject of the passive sentence. "Explorers" is the subject of the active sentence, so it becomes the object of the passive sentence.

3. These two countries are separated by the sea.
- Explanation: Again, the object of the active sentence ("these two countries") becomes the subject of the passive sentence, and the subject of the active sentence ("the sea") becomes the object of the passive sentence.

4. Two foreign languages are spoken by her.
- Explanation: "Two foreign languages" is the object of the active sentence, so it becomes the subject of the passive sentence. "She" is the subject of the active sentence, so it becomes the object of the passive sentence.

5. Only fresh water is drunk by us.
- Explanation: The object of the active sentence ("only fresh water") becomes the subject of the passive sentence, and the subject of the active sentence ("we") becomes the object of the passive sentence.

6. His food is often hidden by my hamster.
- Explanation: "His food" is the object of the active sentence, so it becomes the subject of the passive sentence. "My hamster" is the subject of the active sentence, so it becomes the object of the passive sentence.

7. People who are in danger are saved by firemen.
- Explanation: The object of the active sentence ("people who are in danger") becomes the subject of the passive sentence, and the subject of the active sentence ("firemen") becomes the object of the passive sentence.

8. Domestic animals are often killed by tigers.
- Explanation: "Domestic animals" is the object of the active sentence, so it becomes the subject of the passive sentence. "Tigers" is the subject of the active sentence, so it becomes the object of the passive sentence.

9. Tigers are killed by people for their beautiful skin.
- Explanation: The same reasoning applies here. "Tigers" is the object of the active sentence, so it becomes the subject of the passive sentence. "People" is the subject of the active sentence, so it becomes the object of the passive sentence. The reason for killing is mentioned in the passive sentence to explain why tigers are killed.