Not until he called the secretary three times _________ that the manager went to an important meeting.
#82305
A
did he tell
B
he told
C
was he told
D
he was told
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Only when I read this story for a second time to appreciate its beauty.
#82451
A
did I begin
B
that I began
C
I began
D
had I began
that they may eventually reduce the amount of labor needed on construction sites by 90 per-cent.
#82369
A
Such construction robots are clever
B
So clever the construction robots are
C
So clever are the construction robots
D
Such clever construction robots are
(2013·福建，34)Not until he went through real hardship ________ the love we have for our families is important.
#80079
A
had he realized
B
did he realize
C
he realized
D
he had realized
When _______a hand, one should say “Thank you” or “It’s very kind of you.”
#81001
A
offered
B
to offer
C
to be offered
D
offering
Only after he realized the significance of mastering two languages __________ English carefully.
#82816
A
did he set about learning
B
did he set out learning
C
had he set about learning
D
had he set out learning