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 The boy is ________ the room.
#48361
A
on
B
in
C
at
D
under
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The students are studying at home        computers.
#49800
A
in
B
at
C
on
D
of
Lana said that she wasn’t mad _______ Marcia anymore.
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A
to
B
at
C
for
D
on
_____ this way, you can work out the math problem. 
#48412
A
Of
B
By
C
On
D
In
It’s very kind_______you to buy an air ticket________Singapore for me．
#49794
A
for；for
B
for；to
C
of；to
D
of；of
The police warned us ______ possible danger.
#50023
A
for
B
in
C
to
D
about