The  roller coaster there  moved _______ high speed.
#49499
A
in
B
on
C
with
D
at
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Our school is ________children _______6-12.
#49200
A
in, for
B
for, in
C
of, for
D
for, of
There is a bridge __the river and __ the bridge many people are walking.
#48084
A
over; over
B
on; on
C
on; over
D
over; on
In China, people walk _________ the street.     
#50348
A
on the left
B
on the right of
C
in the middle of
D
on the left of