While income worry is _______ rather common problem of the aged, loneliness is another problem that ________ aged parents may face.
#10385
A
a; 不填
B
the; 不填
C
a; the
D
the; the
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Could you give me the phone number of _____ David Cooper on _____ Fifth Avenue?
#8205
A
a ; the
B
a ; 不填
C
不填；the
D
the ; the
One reason why_____plane is such a popular means of_____transport is that it is very fast and safe.
#10238
A
the; /
B
a; the
C
a;/
D
the; the
People think that ______ opening ceremony of the 29th Olympic Games is _____ great success.
#10505
A
an; a
B
the ; a
C
the ;the
D
the ; /
Www.sda.gov.cn, which has _____food and drug channel with clear explanations, is _____very popular website.
#8362
A
a, a
B
a, the
C
the, /
D
/ ; a
We can never expect____bluer sky unless we create____ less polluted world.
#9999
A
a; a
B
a; the
C
the; a
D
the; the