题干
________ indoor roller coaster is too old. Don't you think it is ________ useless one?
A：A; the
B：An; the
C：The; a
D：The; an
答案(点此获取答案解析）
C
________ indoor roller coaster is too old. Don't you think it is ________ useless one?
A：A; the
B：An; the
C：The; a
D：The; an
