The idea of fish being able to produce electricity strong enough to light a lamp is almost unbelievable, _____ several kinds of fish are really able to do this.
#34581
A
therefore
B
and
C
then
D
but
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—It’s a long time________I saw you last.—Yes，and what a pity it is now that it will be a long time________we see each other again.
#31909
A
before；since
B
since；when
C
since；before
D
when；before
Most of the Europeans refuse to accept GM food________Americans regard it as the fruit from high tech.
#80186
A
when
B
as
C
while
D
the moment
She speaks English fluently _____ she were a native American.
#30524
A
as though
B
even if
C
as long as
D
ever since
_________ we could afford it, we wouldn’t go abroad for our holidays.
#30985
A
In case
B
Now that
C
Even though
D
So that
We need to think outside of box _____ we are to come up with something really new.
#79748
A
so that
B
as long as
C
once
D
if