The little child usually felt frightened at night, so not until ___________.
#82789
A
did he fall asleep his mother left the room
B
he fell asleep had his mother left the room
C
did he fall asleep did his mother leave the room
D
he fell asleep did his mother leave the room
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________ for the fact that she broke her leg, she might have passed the exam.
#79808
A
Hadn't it been
B
Had it not been
C
Was it not
D
Were it not
Only when the war was over ______ to his hometown.
#83865
A
did the young soldier return
B
the young soldier returned
C
returned the young soldier
D
the young soldier did return
 The boy would have died, _______ on him without delay.
#83395
A
if the doctor didn’t operate
B
if the doctor wouldn’t operate
C
would the doctor not operate
D
had the doctor not operated