问题
选择题
____ walk is expected to last all day, so bring ____ packed lunch.[ ]
A. A; a
B. The; 不填
C. The; a
D. A; 不填
答案
答案：C
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____ walk is expected to last all day, so bring ____ packed lunch.[ ]
A. A; a
B. The; 不填
C. The; a
D. A; 不填
答案：C