I found a red __. (leaf, leaves)
Leaf
We need one __ to play the game. (die, dice)
Die
The __ are going to play soccer. (child, children)
Children
The mommy cow has a baby __. (calf, calves)
Calf
All the __ play together. (calf, calves)
Calves
I roll 2 __ when it was my turn. (die, dice)
Dice