1. They showed us the postcards of New Year.
The postcards of New Year was showed to us.
We were showed the postcards of New Year.
2. The teacher told the pupils the story of Washington.
The story of Washington was told to the pupils.
The pupils were told the story of Washington.
3. My father promised me to bring an interesting book about London.
An interesting book about London was promised to be brought to me.
I was promised to be given an interesting book about London.
4. They gave him the chance.
The chance was given to him.
He was given a chance.
5. The grandmother read the grandson a fairy-tale.
A fairy-tale was read to the grandson.
The grandson was read a fairy-tail.