The postman came to the house. He has a letter for my mother. I heard the doorbell ring. I took the letter from the postman.
To improve sentence fluency, how could you state the information above in a single sentence?

To improve sentence fluency and combine the information given into a single sentence, a possible option would be:
"When I heard the doorbell ring, I took the letter for my mother from the postman who had come to the house."
This sentence maintains the chronological order of events and effectively combines the information given in a clear and concise manner.