Besides wildlife on land, there are species living in the oceans _______ we still know little.
#75511
A
about which
B
in which
C
for which
D
with which
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Tom’s farther, for ________life had once been very hard, got success later in his job.
#77736
A
which
B
whose
C
whom
D
who
Foreign ministers of the two countries hold regular meetings, they can exchange views on international issues of both concern.
#77647
A
what
B
where
C
which
D
why