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 My cousin went abroad at_____ age of eighteen.
#32271
A
a
B
an
C
the
D
不填
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What about _____dictionary on the bookshelf?  ---It’s very useful ,I think.
#33717
A
a
B
an
C
the
D
/
—What’s _____most useful invention in the 20th century? —_____ computer, I think. 
#34585
A
the, A
B
a, A
C
the, The
D
/, The
I know you don’t like ______ music, but what do you think of ______ music in the film?
#34502
A
/; /
B
the; the
C
the; /
D
/; the
My friend John insisted that he had seen ______ alien the day before.
#34434
A
a
B
an
C
some
D
any
     book on the desk is    useful one. 
#34608
A
The; an
B
A; a
C
The; a
D
The; /
不定冠词(a,an)
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