Change the voice

1. We saw an elephant cross the road.

2  He was said to be genius.

3 There is reason to believe that they have saved the children.

1. We saw an elephant cross the road.

    An elephant was seen crossing the road by us.

 

2  He was said to be genius.

    They say he was a genius.

 

3 There is reason to believe that they have saved the children.

   There is reason to believe that the children have been saved by them.