Water is very important to living things. Without water there can be（1）life on earth. All animals and plants need water. Man needs water, too. We need water to drink, to cook our food and to clean（2）.
Water is found almost everywhere. Even in the driest part of the world there is some water in the air. You can not see it （3） feel it when it is part of the air. The water in seas, rivers is a liquid. The water in the air is not a liquid （4）a gas.
Clouds are made of water. They may （5）made of very small drops of water. Water, you have found, is very useful, so we must save water.
3、______

A.ourselves

B.or

C.be

D.dbut

E.eno