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That is ________ interesting work.
#32511
A
an
B
a
C
the
D
/
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— Have you seen______ pen? I left one here this morning.— Is it___________ black one? I think I saw it somewhere.
#34554
A
the; the
B
a; a
C
the; a
D
a; the
--- Excuse me, have you seen _______ umbrella here?--- Yes. Is it _______ beautiful blue one? I saw it here just now.
#33273
A
an, the
B
an, a
C
the, the
D
the, a
Edison who invented light had _________ knowledge of science.
#34105
A
a; \
B
a; a
C
the; \
D
the; a
Jenny goes to school on foot.It takes her about half  ____  hour to get there.
#34674
A
an
B
a
C
the
D
(不填)
 ---Is this ____car?     ---- Yes, it’s _____ English car.
#33053
A
a , a
B
a, an
C
an, a
D
an, an
不定冠词(a,an)
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