form the moon, our earth with water        .seventy percent of its surface, appears as a blue ball.
#92376
A
seen, covered
B
seeing, covering
C
seen, covering
D
seeing, covered
推荐题目
______ their homework, these three students have to stay in the classroom for another thirty minutes.
#96596
A
Not finishing
B
Not finished
C
Having not finished
D
Not having finished
I have never seen the word ______ that way before.
#97602
A
to use
B
used
C
using
D
to be used
The lake by the village is believed ______ a number of victims in the past 3 years.
#91315
A
to claim
B
to have claimed
C
claiming
D
being claiming