---What do you think of your teachers? ---Sometimes they are too strict __________ us _________ our study.
#47884
A
at, with
B
at, in
C
with, at
D
with, in
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Who is it _______? 
#48374
A
for
B
by
C
of
D
use
 The boy is ________ the room.
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A
on
B
in
C
at
D
under
What’s the matter ________ you?
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A
with
B
of
C
in
D
at