Question

*5 oraciones de voz pasiva dónde se pase a voz activa
* 5 oraciones de voz activa dónde se pase a voz pasiva que tenga también el presente, pasado, futuro.

Answer 1

You mother is cooking the dinner.  Activa. (Presente continuo)
The dinner is being cooked by your mother.  Pasiva 

Mary writes a postcard to her boyfriend every month. Activa (Presente habitual)
A postcard is written to him every month by Mary. Pasiva. 

Janet bought a car yesterday. Activa (Pasado simple) 
A car was bought yesterday by Janet. 

He sang a song for my birthday.  Activa (Pasado simple)
A song was sung for my birthday by him.  Pasiva. 

He has brought a box in the morning. Activa. (Pretérito perfecto)
A box has been brought in the morning by him. Pasiva. 

They will ask only a question. Activa (Futuro simple)
Only a question will be asked by them. Pasiva. 

He will built a new building in the city. Activa (Futuro simple)
A new building will be built in the city by him. Pasiva.