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Lucy is ____ good girl. She often helps others.
#34530
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a
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an
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the
D
/
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Yesterday afternoon, Lucy played _______basketball and Lily played _______ the piano.
#33264
A
the; the
B
/ ;/
C
the; /
D
/ ; the
—Excuse me, do you have        English dictionary?     —Yes, I do.
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a
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an
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the
D
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Edison who invented light had _________ knowledge of science.
#34105
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a; \
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a; a
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the; \
D
the; a
—_____chapter in Oxford English often consists of four parts.—That’s right.And this chapter mainly talks about _____environmental problems.
#34575
A
The;an
B
An;the
C
the;the
D
A;the
This is         3-D printer. And this is an artificial (人工的) ear. Can you believe that scientists printed this artificial ear by this 3-D printer?
#33175
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a
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an
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the
D
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不定冠词(a,an)
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