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This morning I have _______ art lesson. Art is _______ useful subject.
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a; a
B
an; an
C
a; an
D
an; a
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----May I have a look at the I-phone,sir-----Which one?_________black one?
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A
A
B
An
C
The
D
不填
I think it’s really _________ hard work for me to finish the job in twenty minutes.
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a
B
an
C
the
D
不填
That is ________ interesting work.
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an
B
a
C
the
D
/
–What’s this?  –It’s________ orange.
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/
B
a
C
an
D
the
—Which coat would you like?—I’d like _________ orange one with white flowers on it.
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a
B
an
C
the
D
不填