Niagara Fall is a great tourist drawing millions of visitors every year.A. attentionB. a

问题补充：

Niagara Fall is a great tourist , drawing millions of visitors every year.

A. attention

B. attraction

C. appointment

D. arrangement

答案：

A. attention

(答案→)B. attraction

C. appointment

D. arrangement

解析：考查名词辨析。tourist attraction 是固定短语，“旅游胜地”。appointment 约会；任命。arrangement 安排。