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— Be careful! There is _______ dog lying at the gate. — Thanks a lot.
#33393
A
a
B
an
C
the
D
/
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Yang Lei had ______ unusual experience in Gansu Province. ______ experiencechanged her life.
#33756
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a, The
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#33298
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#33726
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D
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不定冠词(a,an)
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