Change into passive voice

Giúp vs ạ gấp lắm 
----- Nội dung dịch tự động từ ảnh -----
III. Change into passive voice.
1. The teacher always welcomes new students.
2. People speak English all over the world.
3. Thomas Edison invented the phonograph in 1877.
4. The police found two children in the forest.
5. They will send your order as soon as possible.
6. The scientists are studying the problem carefully.
7. Pat Murphy was riding the horse.
8. The police have just arrested the robbers.