题干
Susan is American girl. She plays piano very well.
A：a, the
B：a, /
C：an, the
D：an, /
答案(点此获取答案解析）
C
Susan is American girl. She plays piano very well.
A：a, the
B：a, /
C：an, the
D：an, /
，可以搭成几个 
，还剩几个?