of the surface of the earth          covered with water.
#53609
A
Seven-tens...are
B
Seven-tens…is
C
Seven-tenths...is
D
Seven-tenths...are
推荐题目
 There_____ a hospital in my hometown fifty years ago.
#60237
A
had
B
was used to
C
were
D
used to be
If it________ , I will go to the Central Park with my son this weekend.
#54909
A
isn’t rain
B
won’t rain
C
doesn’t rain
D
didn’t rain
This kind of on-line game _______ a group of teenagers in China.
#55063
A
is made of
B
is made by
C
is made from
D
is made in
We have ______ all the shoes in your size
#62135
A
sold off
B
sold up
C
sold away
D
sold out