问题
选择题
Bob is _____ eleven-year-old boy, but he knows a lot about Chinese history. [ ]
A. an
B. a
C. the
D. /
答案
答案：A
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Bob is _____ eleven-year-old boy, but he knows a lot about Chinese history. [ ]
A. an
B. a
C. the
D. /
答案：A