Rewrite the following sentences so that they mean the same as the original sentence but beginning as given .Put commas where necessary.
1. There is a man living next door.He is a famous singer.The man is a famous singer.2. I´ve got a brother called George. He is married. He lives in Paris. My brother George lives in Paris.3. I have a son. I showed the doctor a photograph of him. He is 5 years old. I showed the doctor years old.4. London was once the largest city in the world, but the population is falling. The population of London is falling.