语法与词汇 16.Dina, ______ for months to find a job as a waitress, finally took a position at a local advertising agency.
【正确答案】 C
【答案解析】分词短语作时间状语，其逻辑主语Dina与struggle为主动关系，故排除B项。由句中的finally took可知非谓语动词的动作发生在句中谓语动作之前，故用现在分词的完成主动式，即选C。