​the stone on the river bank rolled under her feet

2个回答

  • 她是被拉下河流的所以用be+done的形式,因为中间有and做连接词,前后主语一致,后句可省掉be动词.表示动作同时发生,又因为前面句子的be动词是was,所以后面句子省去了谓语was.完整句子:she was being pulled into the river,she was calling out for help.所以前面句子用过去进行时的被动语态就是was being done,