Niagara Falls is a great tourist drawing millions of visitors every day.A. attentionB. at

问题补充：

Niagara Falls is a great tourist ,drawing millions of visitors every day.

A. attention

B. attraction

C. appointment

D. arrangement

答案：

A. attention

(答案→)B. attraction

C. appointment

D. arrangement

解析：本题考查名词的区别。attention意为“注意”; attraction意为“吸引(力)”; appointment意为“任命，委派，约定”; arrangement意为“安排”。tourist attraction意为“旅游胜地”。