"Cows are eating grass " is the active voice of :
AGrass was being eaten by cows.
BGrass is being eaten by cows.
CGrass is been eaten by cows.
DGrass was been eaten by cows.
AGrass was being eaten by cows.
BGrass is being eaten by cows.
CGrass is been eaten by cows.
DGrass was been eaten by cows.
Related Questions:
Change into passive voice .
Post these letters .