My uncle lives____116 Changhe Street. His room is ____the sixth floor. 
#28753
A
at; on
B
to; at
C
on; in
D
of; to
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Research universities have to keep up with the latest computer and scientific hardware __________ price. 
#27260
A
on account of
B
in addition to
C
regardless of
D
not to mention
 The tiger, once a __    __ animal to humans, is now ____ of disappearing on the earth.
#25994
A
dangerous, danger
B
dangerous, in danger
C
in danger, in danger
D
danger, in danger
People in these countries demand equal treatment for all, ____race, religion or sex. 
#25178
A
in defence of
B
regardless of
C
instead of
D
in support of