“Xi Jinping’s report, ” a smile on his face, he continued, “ to several hot topics, discusses how to increase farmers’ ine.”
A. referring
B. refers
C. having referred
D. referred
网友回答
(答案→)A. referring
B. refers
C. having referred
D. referred
解析：主语“he”和动作“refer to”是主动关系，故用现在分词作伴随状语。