It was not until 1911, _______ the first vitamin was identified, _______ people realized the importance of it.
#85155
A
when; which
B
when; that
C
that; which
D
that; that
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It was until last year that he ______.
#85401
A
left his home town for a new start  
B
came to realize the importance of leaving English
C
worked as an English teacher at a middle school  
D
set out to build a new house of h his own
Little ____ about what others think.
#85480
A
he cares
B
he doesn’t care
C
does he care
D
doesn’t he care