题干
Li Qiang is_____ honest boy. He wants to be_____useful person when he grows up
A：a, an
B：an,a
C：a：a
答案(点此获取答案解析）
B
Li Qiang is_____ honest boy. He wants to be_____useful person when he grows up
A：a, an
B：an,a
C：a：a
