问题
选择题
Mary is _____ girl. [ ]
A. a 8 year - old
B. an 8 - year - old
C. a 8 - year - old
答案
答案：B
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Mary is _____ girl. [ ]
A. a 8 year - old
B. an 8 - year - old
C. a 8 - year - old
答案：B