$1.$ My mother often waters flowers in the garden
$→$ Flowers are often watered in the garden by my mother.

S + V_(s/es) + O.

$→$ S(O) + are/is + V3 + by + S. 
$2.$ The boy cleans the window in the class every moning
$→$ The windows are cleaned in the class by the boy every morning.

S + V_(s/es) + O.

$→$ S(O) + are/is + V3 + by + S. 

$3.$ Someone taken some of my books away 
$→$ Some of my book have been taken away.

S + have/has + V3 + O.

$→$ S(O) + have/has + been + V3 + by + S.
$4.$ The teacher corrects exercises every day
$→$ Exercises are corrected by the teacher every day.

S + V_(s/es) + O.

$→$ S(O) + are/is + V3 + by + S. 

$5.$ They provide the victims with food and clothing 
$→$ The victims are provided with the food and clothing.

S + V_(s/es) + O.

$→$ S(O) + are/is + V3 + by + S. 

$#Mei UwU$