Her eyes were fixed on her plate and in a short time 这句话有一点疑问

问题描述:

Her eyes were fixed on her plate and in a short time 这句话有一点疑问
Her eyes were fixed on her plate and in a short time 如果这里的 fix on是短语的话
那应该是 were fixing on啊
如果是被动语态的话 应该是 were fixed by啊
fix on是短语我知道 注意力集中在……的意思 难道说被动语态be 后面可以跟短语?

这个句子的确是被动语态的.主动的是这样:She fixed her eyes on her plate and in a short time... 【动作的执行者是she】 改为被动就是:Her eyes were fixed by her on her plate and in a short time... 你的句...