Change into passive voice

1. People speak English in different parts of the world.
2. The teacher is examining the students now.
3. They have already sent the letter.
4. His friend will translate this article without dictionary.
5. Bob broke my favourite cup.
6. We saw a ship in the sea.
7. The girl was reading a book yesterday evening.
8. He bought this book this book a week ago.​

English is spoken in different parts of the world by people.The students are examining by the teacher now.The letter have already sent by themthe will article without dictionary by his friend.his favourite cup was broken by Bob.A ship was seen by them.A book was read by her yesterday evening.this book was bought by him a week ago.