Not until then _____ their marriage was breaking up because they had little in common.
#83081
A
did I realize
B
I realized
C
had I realize
D
has I realized
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Not for a moment ______ sightseeing while in Europe.
#80704
A
has he stopped
B
he stops
C
did he stop
D
he did stop
We have no idea at all __________.
#82489
A
where he has gone
B
where did he go
C
which place has he gone
D
where has he gone
This problem may lead to more serious ones if ____ unsolved.
#84087
A
making
B
remained
C
keeping
D
left
Not until the heavy snow blocked the express ____ how serious the weather was. 
#80740
A
the villagers did realize
B
the villagers realized
C
did the villagers realize
D
didn’t the villagers realize
 — 2013 is a successful year for us China.— ___________, and ________.
#80018
A
So it is; so 2014 will
B
So is it; so 2014 will
C
So is it; so will 2014
D
So it is; so will 2014