_____from the moon ,our earth ,with water ______seventy percent of its surface, appear as a “blue ball”
| A．See ,covered | B．Seeing ,covering | C．Seen ,covering | D．To see, to cover |
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_____from the moon ,our earth ,with water ______seventy percent of its surface, appear as a “blue ball”
| A．See ,covered | B．Seeing ,covering | C．Seen ,covering | D．To see, to cover |
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