Recently a survey ( )prices of ...-环球青藤（原环球网校）

单选题

Recently a survey ( )prices of the same goods in two different supermarkets has caused a heated debate among citizens.

compared

comparing

compares

being compared

查看答案

正确答案:B

分析句子结构可知，空处应用非谓语动词。根据句意可知，asurvey与compare之间是逻辑上的主谓关系，所以应用现在分词的一般式，与空后的prices..supermarkets一起作后置定语，修饰asurvey。