题目

In April, 2009, President Hu inspected the warships in Qingdao, ______ the 60th anniversary of the founding of the PLA Navy. A. marking           B. marked             C. having marked    D. being marked 答案:A 解析: 考查非谓语动词。非谓语动词做状语,其后有宾语,故与逻辑主语是主动关系,且表示的动作与谓语动词的动作同时进行,用现在分词,选A。
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