______from space, the earth, with water _____seventy percent of its surface looks like a blue ball.
A.Seen; covered | B.Seen; covering | C.Seeing; covered | D.Seeing; covering |
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______from space, the earth, with water _____seventy percent of its surface looks like a blue ball.
A.Seen; covered | B.Seen; covering | C.Seeing; covered | D.Seeing; covering |