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-Look! What's that? -I think it's         bird.
#32368
A
a
B
an
C
the
D
/
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There is ______ American boy in our class and ______ boy can speak good Chinese .
#32187
A
an, the .
B
an, an.
C
a, an .
D
a, the.
There is ________"u" and ________"h" in the word "hour".
#34389
A
a/a
B
an/an
C
a/an
D
an/a
 —The presidents of China and the USA had ________ interview a short time ago.—And it was ________ great success.
#32022
A
an; /
B
the; a
C
an; a
D
the; /
Teenagers should learn to protect (保护) ______from all kinds of dangers.  
#32762
A
them
B
they
C
their
D
themselves
 Look at      eraser on the floor. Whose is it?
#34077
A
a
B
an
C
the
D
/
不定冠词(a,an)
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