1.My brother has just repaired the bicycle

=> The bicycle has just been repaired by my brother

2.Mai wrote an article about environment

=> An article about environment was written by Mai.

3.Mr.Ba grows vegetables in his small garden

=> Vegetables are grown in his small garden by Mr Ba.

4.They will recycle waste paper in a local factory

=> Waste paper will be recycled in a local factory.

5.The artists painted a huge picture to raise money for poor children

=> A huge picture was painted to raise money for poor children by the artists.

1/ The bicycle has just been repaired by my brother

2/ An article wa wrote about environment by Mai

3/ Vegetables are grown in his small garden by Mr.Ba

4/ Waste paper will be recylce in a local factory

5/ A huge picture was painted to raise money for poor children by the artists