Water is the most____of all the things we eat and ____ . Not many people____ this but it is ____  . People can last their lives____  food for a long time , yet two or three days without water can usually make people____.
   Many people don't understand how much water the human body ____. If we don’t have ____ water, we'll feel____  and many of us will get____ . So you know, how important water is to us all. And we should save water any time.