Change the voice :
We keep the books there.
AThe books are kept there
BThe books are being kept there
CThe books were kept there
DThe books were being kept there
AThe books are kept there
BThe books are being kept there
CThe books were kept there
DThe books were being kept there
Related Questions:
Change into Passive Voice :
Let him complete the food.
Turn into the Passive :
She knows the musician personally