问题
选择题
John is _____ honest boy. He has _____ useful book.[ ]
A. an; an
B. a; a
C. a; an
D .an; a
答案
答案：D
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John is _____ honest boy. He has _____ useful book.[ ]
A. an; an
B. a; a
C. a; an
D .an; a
答案：D