Possessives

What is the plural possessive of mermaid?

These assignment's are too difficult for me.

What is the plural of lamp?

The parent's cheers could be heard in the stands.

The three flowers' petals are pink.

The cheerleaders' cheered for the team.

What is the plural possessive of children?

The phones' ringtones are unique.

My friends' are coming over today.

The players are waiting for their water.

The cheerleaders pompoms waved in the air.

What is the plural possessive of cat?

The mascots turn cartwheels.

The speeches' went on for hours.

The families scream for the team.

What is the plural of chair?

The police cars sirens were heard throughout the town.

What is the plural of rainbow?

What is the plural possessive of beach?

The players' uniforms are dirty.