A man -walked in the desert for two days. He1a sand storm during the trip. After the sand storm, he lost the sense of 2. While he was unable to hold on, he suddenly found a small old house. He pulled his3. body into the house. There was only some wood inside. He walked to the corner hopelessly, but suddenly 4 a water pump.
Excitedly, he went to draw water(抽水), 5 he couldn't pump water no matter how hard he tried. He sat on the ground6. Just at that time, he saw a small bottle with a cork(瓶塞). There was a yellow 7posted on the bottle, which read," You must put the water into the pump before you can draw water! Don't 8 before you leave, refill it with water!" He pulled the cork and found the bottle was really filled with water! He could hardly believe his9.
At this moment, he thought, "If I only think about myself, as long as I drink the water in the bottle, I can be10to go out of this desert! If I do as the note told to put the only water into the pump and the water can't come back, I will be11to death. Will I take the risk or not?"
Finally, he made a 12 to do what the note told him and began to draw water with his shaking hands. Sure enough, the water really13!
After he drank enough water, he filled the bottle with water. He enveloped(封住)it with the cork and14 his words after the note, "Believe me, it's really 15. You should learn to pay before you get it!"