One thousand metres deep - level 1
An accident happens in Germany. A man is in a cave. Rocks fall on him. They injure the man man. He cannot get out of the cave. He must stay in there.
He is 1,000 meters deep. His friend climbs out of the cave. It takes him twelve hours. When he is out, he calls for help.
A special team comes. The people in the team go into the cave. They help the man. They want to take him out. It is not easy. It is dangerous inside the cave. It can take days to get out.
Difficult words: cave (space in the ground), be injured (to have problems with the body), climb out (get out).