Pr Pf Structure

A house has been built.

Se ha construido una casa / Una casa ha sido construida

- &amp;lt;object type="application/x-shockwave-flash" data="/audio/mediaplayer.swf" width="100" height="20"&amp;gt; &amp;lt;param name="movie" value="/audio/mediaplayer.swf" /&amp;gt; &amp;lt;param name="flashvars" value="file=/audio/resources/passive-voice/present-perfect.01.mp3" /&amp;gt; &amp;lt;/object&amp;gt;

The whole city has been destroyed by the earthquake.
- La ciudad entera has sido destruída por el terremoto.
I can't get in. These doors have been locked!
- No puedo entrar. Estas puertas han sido cerradas con llave!
Those windows have not been closed yet.
- Aquellas ventanas no han sido cerradas aún.
This wooden floor has not been waxed.
- Este suelo de madera no ha sido encerado.
Has uncle John been promoted to president of the company?
- ¿El tío John ha sido ascendido a presidente de la empresa?
Have the same mistakes been made before?
- ¿Han sido cometidos los mismos errores antes?
People have been requested to cancel appointments before Monday.
- Se le ha solicitado a la gente que cancele las citas antes del lunes.
Guess what,... Jack has been taught to drive a car!
- Adivina qué,... Le han enseñado a Jack conducir un coche!