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She is           unusual writer comes from           European country.
#32036
A
an;an
B
an;a
C
a;an
D
a;a
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—Look at the sky! What is it? —Oh! _______UFO is landing on the ground.
#33439
A
A
B
An
C
/
D
The
There’ll be ______ one-hour documentary tonight on TV . It tells a story of _____ honest boy in the mountain village far away .
#32995
A
an , a
B
a ,an
C
an ,an
D
a,/
—What about _____ English-Chinese dictionary on the bookshelf?—In my opinion, it’s _____ useful tool book for my English learning.
#33325
A
a; an
B
an; a
C
the; a
D
the; an
I think it’s really _________ hard work for me to finish the job in twenty minutes.
#32800
A
不填
B
a
C
an
D
the
Do you think Maths __________ useful subject? 
#33851
A
is a
B
is an
C
are a
D
are an
不定冠词(a,an)
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