Ответ:

  1. Once upon a time there was a boy who wanted to be a fireman.
  2. That businessman is going to visit the US.
  3. The Browns have had this computer for three weeks.
  4. I am going to wash up. I promise.
  5. I wrote a letter to Alice and Susan’s grandfather.
  6. It often rains in London.
  7. She did a lot of tests but she wrote a few dictations.
  8. Your cat never sleeps here, does it?
  9. Helen was wearing a long black dress. She looked wonderful.
  10. I think they will be at the stadium at two o’clock tomorrow.