_______ from space, we can find 70% of the surface of the earth _______ by water.
A.Seeing …... covering | B.Seeing …... covered |
C.Seen ...... covering | D.Seen …... covered |
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_______ from space, we can find 70% of the surface of the earth _______ by water.
A.Seeing …... covering | B.Seeing …... covered |
C.Seen ...... covering | D.Seen …... covered |