(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
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Kate had a terrible time this summer. Not a day ________ without having some unpleasantness with her sister at home.
#79782
A
she spent
B
she had spent
C
did she spend
D
had she spent
So quickly ____________ that what is a possibility today may be a reality tomorrow.
#82473
A
is science advancing
B
science is advancing
C
will science advance
D
science will advance
Next door to ours _________, who has just returned form abroad.
#82591
A
where lives an old man
B
where does an old man live
C
lives an old man
D
does an old man live
So involved with computers ____ that the leaders at the summer computer camps often had to force them to break for sports.
#82934
A
has the children become
B
did the children become
C
has become the children
D
became the children
So little ______ about stock exchange that the lecture was completely beyond me.
#83948
A
did I know
B
I had known
C
I knew
D
was I known