Relative pronomen (henførende stedord) Simpel opgave

Er dette korrekt?

1.The man who came down the chimney no longer had a white beard.

2. Ms. Jones, who was wearing high heels, was walking her dogs in the park.

3. One of the dogs, whose leash snapped, dissapeared into the bushes.

4. The car that came round the corner was driven by a well-known actor.

5. The computer, that was only seven years old, suddenly broke down.

6. The girl whose hat flew off became very sad.

NB: Ikke kig på eventuelle stavefejl - Er det korrekte relative pronomener, jeg har i sætningerne? (Understreget).

Tak :)