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  The telephone was invented in ________ nineteenth century by Bell.
#32056
A
a
B
an
C
the
D
/
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 I think it’s          unusual thing to find a UFO.
#32147
A
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B
an
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_ What ______ useful book! _ Is it _____ one that you borrowed from Mr Green yesterday?.
#33939
A
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B
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C
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I sent ______ e-mail to Amy to say thanks for her help with my study.
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--Mum, where did you put my new sports shoes?--Oh, I put them in a box. And ________ box is under your desk.
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 The second Sunday of May is         Mother’s Day. It’s         special day for children to show their love to their mothers.
#32334
A
/; a
B
/; the
C
a; the
D
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不定冠词(a,an)
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