The girl called for her cat. The girl couldn't find her cat. The girl looked everywhere for her cat.

You see how annoying that is? Don't repeat words! Find more words! It's why we have synonyms.

"Mittens?" The girl said, beckoning her cat to come home. She began to worry when Mittens did not reveal himself. Surely, he was around the house somewhere. Getting out of her seat, she trudged to search for him.

There. Isn't that much better?