The accident happened ________ a cold winter morning.
#48116
A
in
B
at
C
of
D
on
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The foreigners have been in Beijing for three years, so they are familiar the city .
#47620
A
to
B
with
C
for
D
On
The accident happened ________ a cold winter morning.
The foreigners have been in Beijing for three years, so they are familiar the city .