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 Besides wildlife on land, there are species living in the oceans _______ we still know little.
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A
about which
B
in which
C
for which
D
with which
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I’ll never forget the day ________ we worked together
#76675
A
when
B
which
C
that
D
where
She always looks sad, _____ makes people feel sorry for her.
#77636
A
who
B
which
C
that
D
what
The last thirty years _____ the greatest number of laws stopping our rights and progress. Until today we have reached a stage _____ we have almost no rights at all.
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A
saw; which
B
see; where
C
are seeing; in which
D
have seen; where
The book, ___________ is green, has been lent to my brother.
#77934
A
of which cover
B
the cover of which
C
whose covers
D
its cover
I'll never forget the day _________ I was born．
#77701
A
when
B
that
C
on which
D
both A and C