Only when the villagers were faced with water shortage___       how serious the problem of water pollution was.
#84498
A
did they realize
B
will they realize
C
they did realize
D
were they realized
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The door burst open and ________,shouting with anger.
#79523
A
in rushed the crowd 
B
rushed in the crowd
C
the crowd in rushed 
D
in the crowd rushed
(湖南省怀化市2014年高三第二次模拟考试)35. So mysteriously ______ missing that many puzzles wait to be solved. 
#79559
A
did Flight MH370 go
B
Flight MH370 went
C
does Flight MH370 go
D
had Flight MH370 gone