Identify whether the sentences are in active or passive voice.
1. The farmer is watching the field.
2. Many people were injured by the bomb.
3. She is loved by all.
4. By whom was the picture painted?
5. We keep the books here.
6. The wireless was invented by Marconi.
7. The letter must have been written by Pema.
8. You are requested to complete the work.
9. The house was set on fire.
10. People speak English all over the world.