I often watch CCTV-9, ________ I have learned a lot of new words and expressions.
#78541
A
from which
B
of which
C
to which
D
which
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The school ____ we visited last week is the one ____ the singer was born.
#77495
A
where, where
B
where, which
C
which, where
D
which, that
He is the only one of those clerks ________ to the important conference. 
#76721
A
who was inviting
B
who were invited
C
who has been invited
D
who have been invited.