Help the exhausted babysitter complete her text message to the parents by choosing the correct word.

I promise the house is still standing, but your three _____ managed to paint the dog green.

The correct answer is children.

In English, some nouns have irregular plural forms that don't end in "-s." The plural of the singular noun "child" is "children." Adding an "s" to the end of "child" or "children" is grammatically incorrect!