Before______________white,the door should be cleaned thoroughtly!A painted B being painted

Before______________white,the door should be cleaned thoroughtly!A painted B being painted
Before______________white,the door should be cleaned thoroughtly!
A painted B being painted

Before______________white,the door should be cleaned thoroughtly!A painted B being painted
选A
逗号前面明显是非谓语动词,而paint与主句主语door关系式被动的,所以选A
B非谓语动词的形式楼主看好了是现有现在分词后有被动语态,难道PAINT与DOOR是主动的?