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Where is my backpack ? It’s          the floor .
#49899
A
under
B
in
C
on
D
at
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推荐题目
Bin Laden was killed         May 2, 2011.
#50754
A
in
B
on
C
by
D
at
 She often provides food and clothes           the homeless children.
#45824
A
of
B
with
C
about
D
for
Could you come _______Sunday afternoon?
#48145
A
in
B
at
C
on
D
out
Mr Wang was mad _______ me because I was late against today.
#49251
A
of
B
on
C
with
D
to
The teachers always complain about         the         children in class.
#49848
A
to teach, tired
B
teaching, tired
C
teaching, tiring
D
to teach, tiring