Only then ________how much damage had been caused. 
#80972
A
she realized
B
she had realized
C
had she realized
D
did she realize
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No sooner____ on my comfortable bed______ my telephone rang.
#84472
A
had I lain, than
B
I had lain, than
C
had I lain, when
D
did I lain , when
So sudden _____ that the enemy had no time to escape.
#83819
A
did the attack
B
the attack did
C
was the attack
D
the attack was
Only ____from university ____how difficult it was to make a good career. 
#79605
A
when did I graduate; I realized
B
when did I graduate; did I realize
C
when I graduate; did I realize
D
when I graduated; did I realize