Identify the three mistakes and type the correct answers.
The boys father was a police man who worked at the christchurch police station.
1. "The boys father" should be corrected to "The boy's father."
2. "police man" should be corrected to "policeman."
3. "christchurch" should be corrected to "Christchurch."
Corrected sentence: The boy's father was a policeman who worked at the Christchurch police station.