The scientists have made an exhaustive study of the virus _______ many people have been inflected.
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A
to which
B
in which
C
with which
D
for which
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I walked to the top of the hill with my friend, _____ we enjoyed a splendid view of the lake.
#77432
A
which
B
where
C
who
D
that
Laws have been passed in parts of South Africa, _____ governments either tax shoppers who use plastic bags or fine companies that hand them out.
#78028
A
which
B
where
C
as
D
what
“I’d like to give my thanks to those _____ help my son was able to survive this terrible disease,” said the woman on TV.
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A
who
B
whose
C
with whose
D
with whom
Chang’e2 did many experiments, ______ I think are of much help for knowing space.
#76050
A
which
B
what
C
when
D
where