Now everyone is concerned about how to conquer the economic crisis, __________is very important for us to preserve our standard of living．
#78697
A
which success
B
its success
C
the success of which
D
the success of it
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Advertising can influence consumers' moods，_____ in turn，can influence consumers’reactions to products．
#78612
A
that
B
which
C
where
D
when
The teacher doesn’t believe his reason for being absent from class ___ he was ill, ____mad him sad.
#78688
A
that ; which
B
why; which
C
why; what
D
that ;what
、The virtues of thrift（节俭）and hard work is vital for everyone, is often the case in any society.
#78643
A
as
B
that
C
when
D
where
In our class there are 73 students, ____ half wear glasses.
#78610
A
in whom
B
of them
C
in them
D
of whom