Question

achievement verdict
sadness wilderness
write the possessive noun.
the ________ (children)
toys are all over the house.
is this a simple, compound,
or complex sentence?

Explanation:

To form the possessive noun for an irregular plural noun that doesn't end in -s, add an apostrophe and an -s to the plural noun. "Children" is an irregular plural, so we add 's to show ownership of the toys.

Answer:

children's