Plurals vs Possessives

All of the girls/girl's were laughing.

• girls

• girl's

I fed the goats/goat's at the farm.

• goats

• goat's

The birds/bird's were singing.

• birds

• bird's

The student's/students were whispering.

• student's

• students

Did you see the red leaf's/leaves?f

• leaf's

• leaves

I saw the cat's/cats kittens.

• cat's

• cats

Mrs. Smith put the cupcakes/cupcake's on the plate

• cupcakes

• cupcake's

My cupcake's/cupcakes frosting tastes delicious.

Look at those ducks/duck's flying over us.

• duck's

• ducks's

• ducks

What change if any should be made in the following sentence?

• Change kites to kite

• Change fly to flies

• Change kites to kite's

• Change it to its