--- Mary knows so much about ______earth! ---Yes, although she is only ____eight- year-old girl.
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an; a
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the; an
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the; a
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an; an
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The dog had _____ serious toothache so its owner took it to _____ animal doctor.
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an, an
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the, /
C
a, /
D
a, an
The old man has________ useful horse and horse can do a lot of things for him.
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an; a
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the; a
C
an; the
D
a; the
We can have ___ blue sky if we create ___ less polluted world.
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a. a
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a, the
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the, a
D
the, the
Tim, do you have _________ soccer ball? Let’s play ________ soccer together.
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a; a
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an; the
C
the; /
D
a; /