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Articles (a, an)
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An hour/a hour
An hour
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A pencils/An pencils/None
None
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A notebook/An notebook
A
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A sharpener/An sharpener
A sharpener
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An orange/A orange
An orange
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A hero/An hero
A hero
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An apple/A apple
An apple
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The Big Ben/A Big Ben/An Big Ben
The Big Ben
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