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My friend John insisted that he had seen ______ alien the day before.
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A
a
B
an
C
some
D
any
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Kobe Bryant, _______NBA star, returned to _______ training in November 2013
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A
a; /
B
a; the
C
an; the
D
/; the
This is         key and that is           eraser.
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A
a, a
B
a, an
C
an, a
D
the, an
There is _______ 11-meter-long bridge over ______ river.
#34241
A
a; the
B
the; a
C
an; an
D
an; the
Doing lots of listening practice is one of ________ best ways of becoming ________ good language learner.
#32081
A
the; the
B
the; a
C
不填; a
D
the; 不填
—Do you know        girl with long hair?      --- Yes, she is a teacher of      university.
#32780
A
an; a
B
the, a
C
the, an
D
a; an