They made the bridge of stone.改被动句请问应该怎么样

The bridge was make of stone by them.
The bridge of stone was made by them.
两个都可以的..

The bridge of stone was made by them.

The bridge of stone is built by them.

The bridge was made of stone.

the bridge was made of stone by them.

The bridge was made of them by stone.

The bridge was made of stone by them.

The bridge was made of stone by them.
桥是用石头作成的.