Keep the surface free from dirt by putting a cover over it.

Keep the surface free from dirt by putting a cover over it. water c? over 70% of the earth"s surface .it‘snecessary f? a over the surface A body weighs less the farther it gets from the surface of t keep free from water keep the cover complete sentence by choosing the right verb and putting it keep it away from the 英语翻译The surface of the blades are smooth and free from all b A body weighs ___ from the surface of the earth. （）from the clothes ,the dirt disappeared . we use a bed cover to keep the dust off