Fill in the blanks with appropriate wordHe bought new shoes last month but they are already _______ out.

The appropriate word to fill in the blank is "worn."

So the completed sentence would read: "He bought new shoes last month but they are already worn out."

In this context, "worn out" means that the shoes have been used to the extent that they are no longer in a good condition, possibly showing si Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.