Who can think of a situation __________ this idiom can be used? 
#76647
A
which
B
that
C
where
D
inthat
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He made another wonderful discovery, _______ of great importance to science. 
#76145
A
which I think is
B
which I think it
C
which I think it is
D
I think which is
Mr. Li lent me a book last week, _____I have learned a lot about earthquakes.
#76859
A
to which
B
for which
C
from which
D
with which