difficult to understand, the lecture was poorly thought of.
A. Sounded
B. Sounding
C. To sound
D. Being sounded
网友回答
A. Sounded
(答案→)B. Sounding
C. To sound
D. Being sounded
解析：
试题分析:考查非谓语动词。从结构可知 difficult to understand,在句中做原因状语，而不定式在句首做状语时表示目的，故排除C选项。句子主语 the lecture和sound之间是主动关系，所以用现在分词做状语，正确答案为B。句意：听起来很难理解，这个报告被评价很低。