Not until I began to work ________ how much time I had wasted.
#84287
A
didn’t I realize
B
did I realize
C
I didn’t realize
D
I realize
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Not until I read your letter ________ the true state of the affairs.
#80055
A
did I understand
B
had I understood
C
I understood
D
I had understood
Not until Mary reads her composition the second time ___________the spelling mistake.
#81962
A
did she notice
B
she noticed
C
does she notice
D
she has noticed
Generally speaking , ______according to the directions , the drug has no side effect .
#84402
A
when taking
B
when taken
C
when to take
D
when to be taken