I left out the following sentences. Thank you. I also included the sentences you told me to divide.
1) How was it possible that they could not hear it? In fact, the police officers must have heard it, the narrator decided. And they must have suspected him of a crime all along.
2)Their calm manner and idle chatter were part of a ruse to mock him. Unable to brook their counterfeit behaviour any longer, unable to endure the sound any longer, the narrator confessed to his crime.
3) On that particular night, unlike the preceding seven nights, the narrator opened the door with greater caution. However, he made a noise when he was going to open the lantern and the old man immediately sprang up in bed and got scared.
4) The old man’s eye was open, which made the narrator angry and froze his blood. The narrator kept still, he didn’t move a muscle and said nothing.
1 answer
All else is OK.