Question

Why is the policeman walking along the streets and checking the buildings that he passes?

Answer 1

Answer: In the story “After Twenty Years” by O. Henry, the policeman is walking along the street and checking the doors of the buildings that he passes because he is trying to find out if a criminal is hiding in one of the buildings. The story is about two childhood friends, Jimmy and Bob, who made a pact to meet again after twenty years. Bob moved west to make his fortune, while Jimmy stayed in New York as a young adult. The story takes place when Bob returns to New York twenty years later and meets Jimmy at the agreed-upon location.

Answer 2

Answer: maybe he's inspecting them for safety, looking for someone or something, or just new to the job or neurotic?

Explanation: in short, because that's his job. I don't and cannot know the context of this question or the options, so it is difficult to answer.