(2013·开封高三第一次模考)Not until ________ the Internet ________ that the Chinese sailors were rescued by the European Union Task Force.
#79888
A
did I surf; did I know
B
did I surf; I knew
C
I surfed; did I know
D
I surfed; I had know
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Not until all the fish die in the river ____ how serious the pollution was.
#81114
A
did the villagers realize
B
the villagers realized
C
the villagers did realize
D
didn’t the villagers realize
Only when they were told the date of the wedding ,____ their daughter would get married.
#81185
A
realized they
B
did they realized
C
did they realize
D
they did realize
—It has rained for a day. What timely rain! _____________.
#82883
A
So it is
B
So is it
C
So it has
D
So has it
The research is so designed that once ____ nothing can be done to change it.
#84058
A
begins
B
having begun
C
beginning
D
begun