Parts of speech and 'there' homophones

The children are happy because ___ going to the parade.

This describes a person, place, or object.

Does this sentence use an apostrophe correctly? "The childrens' entertainer arrived late."

A person, place, or object is a(n)

The weather has been inconsistent, ____ is no telling what it will do.

The family planned ____ holiday to the beach.

If ____ is one thing a bulldog loves, it's a comfortable bed.

This describes an action word.

Does this sentence use an apostrophe correctly? "Julia said its a lovely day but I think it will rain."

An action word is a