Christopher Columbus discovered America in 1492.

=> The America was discovered in 1492 (by Christopher Columbus).

Anna painted the Wilson's house.

=> The Wilson's house was painted (by Anna).

The American team won the cup.

=> The cup was won (by the American).

Philip took a picture of the sea. 

=> A picture of the sea was taken (by Philip).

My mother saw Mike at the supermarket.

=> Mike was seen (by my mother) at the market.

Freddy Mercury sang 'we will rock you'.

=> 'We will rock you' was sung (by Freddy Mercury).

My parents read 'Da Vinci code'.

=> 'Da Vinci code' was read (by my parents).

My brother found a purse in the street.

=> A purse was found (by my brother) in the street.

1, America was discovered by Christopher Columbus in 1492.

2, Wilson's house was painted by Anna

3, the cup was won by The American team

4, a picture was taken by philip of the sea.

5, mike was seen by my mother at the supermarket.

6,  'Da Vinci code' was read by my parent.

7, a purse was found by my mother in the street.