问题
选择题
This is _____ useful book. I read _____ book every day.[ ]
A. an, /
B. an, the
C. a, the
D. a, a
答案
答案：C
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This is _____ useful book. I read _____ book every day.[ ]
A. an, /
B. an, the
C. a, the
D. a, a
答案：C