题干
—Is there uniform on the sofa? —No, there is on the desk.
A：a, an
B：an, a
C：a, one
D：an, one
答案(点此获取答案解析）
C
—Is there uniform on the sofa? —No, there is on the desk.
A：a, an
B：an, a
C：a, one
D：an, one
