The science of computer,____ rapid progress has been made, is the most important of all.
#77877
A
to which
B
from which
C
in which
D
of which
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Barack Obama delivered a speech to 500 local youths during his visit to China，many of were from Fudan University and Tongji University．
#78041
A
them
B
whom
C
which
D
those
These old pictures bring to their mind the college days ________ they spent together, ________ life was hard but happy.
#76359
A
when; whose
B
which; whose
C
which; when
D
when; which
The Charles Dickens Museum in Doughty Street is the only one of his London homes to survive，______he wrote Oliver Twist.
#75637
A
where
B
that
C
which
D
what