(2010·江西)Not until he left his home ________ to know how important the family was for him.
#79825
A
did he begin
B
had he begun
C
he began
D
he had begun
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Out _________, still discussing the fashion show with great interest.
#82850
A
walked a crowd of young girls
B
did a crowd of young girls walk
C
were walking a crowd of young girls
D
a crowd of young girls were walking
（湖南省怀化市2014年高三第二次模拟考试）35. So mysteriously ______ missing that many puzzles wait to be solved.
#79559
A
did Flight MH370 go
B
Flight MH370 went
C
does Flight MH370 go
D
had Flight MH370 gone
Under no circumstances _______the search far the missing plane.
#79578
A
do we stop
B
will we stop
C
we stop
D
we will stop
It is required that the students mobile phones in their school, so seldom them using one.
#83237
A
should not use; you will see
B
don’t use; will you see
C
not use; will you see
D
not use; you will see
(2013·湖南，35)Not once________to Michael that he could one day become a top student in his class.
#80077
A
occurred it
B
it did occur
C
it occurred
D
did it occur