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Exercise is good ______us.  
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at
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in
C
of
D
for
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The charity show will be _______ the morning of next Sunday.
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in
B
on
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at
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from
Books are made __________ paper while paper is mainly made __________ wood.
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of; of
B
from; from
C
of; from
D
from; of
She was the eldest _______ the three girls.
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in
B
between
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with
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among
I was born _______ March,1999.
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on
B
in
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at
D
for
______ his mother’s help ,  the little boy can call her ______13635322770
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With , on
B
With, at
C
With , about
D
At, with