Respuesta :

En la voz pasiva, el sujeto recibe la acción del verbo. 

La voz pasiva en presente se forma con el verbo to be en presente y el verbo principal en pasado participio.

Por ejemplo: 
Presente
Voz activa: Jim writes a letter. (Jim escribe una carta)Voz pasiva: A letter is written by Jim. (Una carta es escrita por Jim)

Pasado
Voz activa: Jim wrote a letter. (Jim escribió una carta)Voz pasiva: A letter was written by Jim. (Una carta fue escrita por Jim)

Oraciones en voz pasiva:
1. This house was built by my mother.
2. Washington was bombed by Pakistan.
3. A letter was written by Tom.
4. The keys were lost by my sister.
5. The lesson was studied by my brother.
6. All of the cookies were eaten.
7. The apple was cut.
8. the room was painted by her
9. that show was given by the actress
10. the dinner was made by melanie