Mr .Bin wrote the report yesterday
-> the report...was written by Mr.Bin yesterday.
You have to finish this work on time
->this work...has to be finished on time.
His uncle will buy that house
-> that house..will be bought by his uncle.
The fire has destroyed many houses
-> many houses...have been destroyed by the fire.
They paint their house every four years
-> their house...is painted every four years.
The engineers are going to build the bridge
->the bridge....is going to built by the engineers.

-Mr .Bin wrote the report yesterday
=> the report...was written by Mr.Bin yesterday.
-You have to finish this work on time
=>this work...has to be finished on time.
-His uncle will buy that house
=> that house..will be bought by his uncle.
-The fire has destroyed many houses
=> many houses...have been destroyed by the fire.
-They paint their house every four years
=> their house...is painted every four years.
-The engineers are going to build the bridge
=>the bridge....is going to built by the engineers.