Write the next sentence in the following story.

How to fix a stuck zipper
Look for fabric stuck in the zipper.
Sometimes, zippers may stop working because a bit of the surrounding fabric gets caught in the teeth. Inspect the garment or accessory closely for snags, folds, tangles and other signs of a hangup.
These tend to be fairly easy to correct. Snags are usually to blame when a zipper completely refuses to budge.