________ reducing pullution, man should pay more attention to conserving energy.
#79708
A
As well as
B
As long as
C
As far as
D
as soon as
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To improne the pmlity of our products we uaked for nuggratior a had used the producu.
#34749
A
whacver
B
who
C
whichever
D
which
He’ll never forget the years _______ he studied in Oxford University.
#33993
A
where
B
on which
C
when
D
which