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China’s growth is not _____ threat to others. On _____ contrary, it will bring more opportunities to the world. 
#9377
A
a; /
B
/; the
C
the; /
D
a; the
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The Arctic, which is abundant in oil, _____ second only to the Middle East, is ______ home to seals.
#7618
A
the; a
B
/; the
C
the; a
D
/; /
—It’s said that John will be in a job paying over $60,000 ______ year.—Right, he will also get paid by ______ week.
#9265
A
a; the
B
the; the
C
the; a
D
a; a
(2013·安徽名校联考Ⅱ)—You've dropped ________ “s” in the word “acros”.—Oh, ________ letter “s” should be doubled like this “across”.
#7942
A
a; a
B
an; a
C
an; the
D
the; the
 First impressions are the most lasting.After all, you never get ________ second chance to make ________ first impression.(2010·北京)
#7920
A
a;the
B
the;the
C
a;a
D
the;a
. She makes _______ effort to learn maths and she has made _______ great progress in it.
#9819
A
an ; a
B
/ ; a
C
the ; /
D
an ; /
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