John has been away from his home city for ten years. now he is back to mainfield and sees many changes. say what john noticed. 1. they've built a new hospital. 2. they've rebuilt the old library. 3. they've turned the city centre into a real shopping area. 4. they've opened a theatre. 5. they've changed the names of some streets. 6. they've closed the city open market. 7. they've planted many trees. example: john sees that a new hospital has been built.