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 I think it’s          unusual thing to find a UFO.
#32147
A
a
B
an
C
the
D
不填
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 －Can I help you?－I want _____ egg and two hamburgers, please.
#33722
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This is _____interesting work. We really enjoy it.
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#34273
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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