I was wondering what to do with my car which won't start ________ a kind man offered to help.
#30256
A
while
B
and
C
so
D
when
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_______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