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It is ________ eraser. 
#34687
A
a
B
/
C
an
D
two
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Do you know a spaceship flies at about nineteen kilometers ________ second?
#33191
A
the
B
a
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/
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There ’s __________“u” and __________“s” in __________  word “use”.
#33703
A
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B
a, an ,/
C
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D
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---Did you have ________ nice holiday?---Yes, it was _______ best holiday I’ve ever had.
#33467
A
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B
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C
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D
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There is      “u”and          “l” in the word “ruler”.
#32981
A
a;a
B
an;an
C
a;an
D
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There’s     800-metre-long road behind       hospital and it’s       one-way road.  
#32516
A
an; a;an
B
a; a; an
C
an; the; a
D
a; the; a
不定冠词(a,an)
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