(2013·高考湖南卷)Not once________to Michael that he could one day become a top student in his class.
A．occurred it B．it did occur
C．it occurred D．did it occur
(2013·高考江苏卷)“Never for a second，”the boy says，“________ that my father would come to my rescue.”
A．I doubted B．do I doubt
C．I have doubted D．did I doubt
(2013·高考辽宁卷)At no time ________the rules of the game.It was unfair to punish them.
A．they actually broke
B．do they actually break
C．did they actually break
D．they had actually broken
(2013·高考福建卷)Not until he went through real hardship ________the love we have for our families is important.
A．had he realized B．did he realize
C．he realized D．he had realized
(2013·高考新课标全国卷Ⅱ)Only by increasing the number of doctors by 50 percent ________ properly in this hospital.
A．can be the patients treated
B．can the patients be treated
C．the patients can be treated
D．treated can be the patients
(2013·高考湖南卷)If nothing________，the oceans will turn into fish deserts.
A．does B．had been done
C．will do D．is done
