The plan to be carried out next month needs among the members of the labor union before .
A. to discuss；carrying out
B. to be discussed；carried out
C. discussing；being carried out
D. discussed；to be carried out
网友回答
A. to discuss；carrying out
B. to be discussed；carried out
(答案→)C. discussing；being carried out
D. discussed；to be carried out
解析：考查固定结构和动名词用法。固定词组sth need doing=sth need to be done某事需要被做；第二空前的before是介词，后面要接动名词，根据句意使用被动语态。句意：下个月要被执行的计划在执行之前需要被讨论。故C正确。