From space, the earth looks blue. This is ____about seventy-one percent of its surface is covered by water.
#30949
A
why
B
how
C
because
D
whether
推荐题目
—You seem to have known Dr. Ken for a long time.—That’s true. ________ he joined our club years ago.
#34031
A
Since
B
Until
C
When
D
If
Some people waste food，________other people haven’t got enough to eat.
#31933
A
when
B
until
C
since
D
while
--What’s your idea?--My opinion is _____ ____ happens, we should not stop the reform.
#32227
A
when; what
B
that; when
C
that; whatever
D
when; what
_______the coach was content with was _____his team won the match.
#31211
A
What’s;which
B
That;that
C
What;that
D
That;what