from the moon, our earth with water seventy percent of its surface, appears a blue ball.
A.Seen; covered | B.Seen; covering |
C.To see; covering | D.Seeing; covered |
相关知识点
推荐套卷
from the moon, our earth with water seventy percent of its surface, appears a blue ball.
A.Seen; covered | B.Seen; covering |
C.To see; covering | D.Seeing; covered |