I failed again in the examination and only then_______how much time I had wasted.
#84160
A
I realized
B
I had realized
C
did I realize
D
had I realized
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Only with the greatest of luck _____to escape from the rising flood waters.
#80564
A
managed she
B
she managed
C
did she manage
D
she did manage
The door burst open and________, shouting with anger. 
#80385
A
in rushed a crowd
B
in rushing a crowd
C
rushed in a crowd
D
in a crowd did rush
They don't study in NO 1 middle school, ___ those boys.
#83724
A
so do
B
so don't
C
neither study
D
nor do