【题目】Premier Li Keqiang delivered a speech at the conference, _________ university graduates to start their own business.
A. encouraging
B. to encourage
C. having encouraged
D. encouraged
在线课程【答案】A
【解析】句意：李克强总理在大会上做报告，鼓励大学毕业生开创自己的事业。encourage动作与deliver动作同步进行，且题干的主语是动作执行者，故用现在分词做状语。故选A。