The approach ______ the problem is contrary ______ our expectation.
#26560
A
to; to
B
of; to
C
to; on
D
for; on
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Theory is based on practice and ________ serves practice. 
#27483
A
in turn
B
by and by
C
by chance
D
in this case
 — How come you are here?— I came here for nothing else but to see you ____.
#26449
A
by chance
B
in addition
C
at random
D
on purpose
His job at the hospital did not pay much, so he found another _____.
#28357
A
on the rise
B
on the spot
C
on the decline
D
on the side