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The policeman is helping the old woman __________ a heavy bag on her back.
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A
in
B
with
C
at
D
on
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The girl _____yellow is her sister.
#47571
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in
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at
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of
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for
Hundreds of students came to Shaoxing to work _______ the World Choir Games in 2010,
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at
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Japan lies _______ the east of China.
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in
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During the Spring Festival, the heavy snow stopped many peoplefrom ____ back home.
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go
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goes
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 They can buy the pens _____ a very good _____.
#51047
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at, price
B
in, price
C
at, cost
D
at, selling