被动语态中by短语的位置问题

请问一下：在英语的被动语态中，表示动作执行者的 by 短语的位置一般如何放？是放在句末？还是放在被动语态之后？比如：

The students were told by the teacher to bring an umbrella.

The students were told to bring an umbrella by the teacher.

哪句对，还是两句都对？

两句都对。其区别是：表示动作执行者的 by短语通常放在句末，但若被动语态后面的结构“比较复杂”，且 by 短语“比较简单”，则也可将其前移如：

Parents are obliged by law to send their children to school. 法律规定父母必须送子女入学。

陈根花 - 华文出版传媒执行主编

擅长：英语考试 | 采纳率 80% | 回答于 1秒前

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