The clever boy made a hole in the wall, ________ he could see what was going on inside the building.
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A
on which
B
at which
C
through which
D
in which
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Mo Yan, _______ won the 2012 Nobel Prize for literature, has received worldwide praise.
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A
which
B
whose
C
that
D
who
Can you make sure ______?
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A
that he will come here today
B
when he will come here today
C
if will he come here today
D
whether will he come here today
—It’s good to see you again.—Yes. I keep all the letters __________ you wrote to me over the years.
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A
who
B
that
C
when
D
where
He is very grateful to the girl____ he often turns for help when he meets with difficulties.
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A
whom
B
to whom
C
to who
D
which