Some of the people often ask the same question the air has been polluted.
#30604
A
whether
B
if
C
that
D
where
推荐题目
_______cloning human embryos is not legal in many countries, some scientists are already pushing ahead with research in order to produce a cloned human baby.
#31691
A
While
B
When
C
Since
D
if only
__________ attracts movie goers in the film Avatar is its vivid three-dimension effect (三维效果) , grand war scenes and touching love story.
#34283
A
That
B
What
C
Which
D
It
_______ you have got the news about him, I won’t hold it back from you.
#31730
A
Even though
B
Now that
C
In case
D
As if
Tom raised his hands to say something, but he remained silent in the end.
#31958
A
even if
B
as if
C
so that
D
now that