These sentences sound unnatural in the active.rewrite them using the passive. They built our house in the 17thcentury.

1) They built our house in the 17th century. Our house was built in the 17th century. 2) Someone’s decorating my flat at the moment. My flat is being decorated at the moment. 3) Has someone fixed the coffee machine yet? Has the coffee machine been fixed yet? 4) We ate in restaurants while they were building a new kitchen. While the new kitchen was being built, we ate in restaurants. 5) We arrived at work to find out that someone had burgled our office. We arrived at work to find out that our office had been burgled. 6) They won’t recognize her in those darkness. She won\'t be recognized by them in that darkness.