Write a annotation for... ( PLEASE IT""S A PRACTICE EOG !! ) 3 sentences plz.

It was murky inside the cave. Pushing himself along with his hands careful to touch only sand and not the living coral, Jim moved forward. Where was Chad? Jim banged on his air tank to get Chad’s attention, but there was no answering sound. Suddenly, the cave narrowed. Jim pushed forward and connected with something—Chad’s feet. End of the line, Jim thought. He grabbed Chad’s foot and tugged it to show he was backing out of the cave. But when he tried to do so, Jim found that he couldn’t move. His air tank was wedged tight between the rocks. (18) He was trapped. So was Chad, who was struggling to free himself. As he felt his cousin’s feet kick and flail against him, Jim fought down a surge of panic. He knew that if he breathed too hard he could run out of air or hyperventilate and pass out. Breathe easy, he commanded himself, take gentle, even breaths and you’ll get out of this. But how was he going to get out? No matter what he did, his air tank was stuck fast against the rocks, and he couldn’t move his arms to unhook it. Think! He couldn’t budge the rocks that made up the underwater cave, but as Jim wriggled and pushed, he noticed the sand on the ocean floor shifted under his weight. Using his hands and elbows, Jim began to dig under himself. Now he had a little wiggle room, and when he pushed, he could slide backwards. He kept digging as, an inch at a time, he backed out of the narrowest part of the cave.