A chemist can _the oxygen from hydrogen in water.
there is no water and air on the moon, is there?_____________________
Water is__________ because it desires nothing and contends for nothing.
Five Elements are metal, wood, water, _________________________and earth.
The strength of an Americano varies with the number of _______ and the amount of water added.
Tree-planting helps to ____ water and prevent soil erosion.
The land is affected by a ________ and the cattle are dying fast for lack of drinking water.
3 Complete the questions and answers. ► Offer someone food. Do you want something to eat? 1 Offer someone a drink. A Would ________ a drink? Accept, and ask for some water. B Yes, ________. ________ water?
Air and water pollution not only affects everyone’s health but also makes it difficult for business to ________.
Water and air are _______ to human beings. We can not live without them.
We call water, electricity and sewer______.
According to Aristotle’s theory, everything is made out of four ______: earth, air, fire, and water.
__________most of the earth‘s surface is covered by water， fresh water is very rare and precious．
Good anchorage may be obtained anywhere，generally mud and sand，in this water area Vessel may have______．
The two elements ,______water is made up are the gases oxygen and hydrogen.
Im afraid _______ water will change the color and flavor of food.
Scarcely had the boat reached the open water______it encountered high winds and heavy seas.
The two elements______water is made are oxygen and hydrogen.
The distance between the surface of the water and the tidal datum is the______．
The temperature（be)______110°C,water boils and turns into steam.
The razor and water _____ the job.
Electricity and water__________us about sixty yuan per month.
We all know the truth_____there are air, water and sunlight there are living things.
In the extremely hot and dry environment, creatures are imagined to have ______ to minimize loss of water and conserve it.
