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I have ________ useful knife and my sister has _______ eraser.
#33582
A
a; an
B
an; a
C
a; a
D
an; an
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—What        cold weather!—Yes. But it’s  unusual experience for us, we normally live in a hot place.
#33943
A
/; a
B
a; an
C
/ ; an
D
a; the
We can have ___ blue sky if we create ___ less polluted world.
#48118
A
a. a
B
a, the
C
the, a
D
the, the
 It is said that we will have _____ one-day holiday tomorrow, it’s ______ good news for most of the students.
#32850
A
an; a
B
an; a
C
a; /
D
a; the
--Do you play _______ piano in your free time?---No, I like sports. I often play______ soccer with my friends.
#34593
A
/; the
B
the ;/
C
the ; the
D
a; a
______ girl in red is ______ friend of Mary’s.
#34221
A
The, the
B
The, a
C
A, a
D
A, the
不定冠词(a,an)
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