单选题 First designated in 1970, Earth Day has become an annual international event ______ concerns about environmental issues such as pollution.
A. dedicated to raising B. dedicated raising
C. dedicates to raise D. that dedicates to raising

【正确答案】 A

【答案解析】[解析] 1970年设立的地球日已经成为一项年度国际大事，致力于提升公众对环境事业比如污染问题的关注。
[解析] 考查dedicate的用法。dedicate是及物动词，其固定搭配为dedicate oneself/one’s life to sth．，意为“献身于，致力于……”。选项A用过去分词形式dedicated作后置定语，修饰event，可还原成定语从句为：which is dedicated to raising，因此为正确答案。由此也知选项D中dedicates不能为主动态。