The 31st Olympic Games will take place in Brazil ______ 2016. 
#48023
A
at
B
on
C
in
D
by
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Please call me ______ 289-6578. 
#47561
A
in
B
for
C
on
D
at
He has poor eyesight _______computer work
#48530
A
because too many
B
because too many
C
because of too much
D
because of much too