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This chair is        black and that is        orange chair.
#32557
A
a; /
B
/; a
C
a; a
D
/ ; an
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There is _____ “s”  and _______ “c” in the word “school”.
#33055
A
an; a
B
a; an
C
the ;a
D
/; an
—Tokyo will host          2020 Sumner Olympics. —Really? It will be          first Asian city to host the Olympics twice.
#32613
A
a;a
B
the;the
C
the;a
D
a;the
 I had ______ unusual experience on Sunday. 
#32531
A
a
B
an
C
the
D
\
— Excuse me, Miss Li. Where will you take _____ trip? — I’ll travel to a famous island of _____ Pacific Ocean.
#33752
A
a; /
B
a; the
C
the; /
D
the; the
My friend John insisted that he had seen ______ alien the day before.
#34434
A
a
B
an
C
some
D
any
不定冠词(a,an)
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