主动语态改为被动语态,在什么情况下主动语态的主语被省略?eg:We must keep the noise under 45dbs hereg:We must keep the noise under 45dbs here(改为被动语态）The noise must be kept under 45 dbs here.为什么we被省略?什

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/03 22:56:05
主动语态改为被动语态,在什么情况下主动语态的主语被省略?eg:We must keep the noise under 45dbs hereg:We must keep the noise under 45dbs here(改为被动语态）The noise must be kept under 45 dbs here.为什么we被省略?什

主动语态改为被动语态,在什么情况下主动语态的主语被省略?eg:We must keep the noise under 45dbs hereg:We must keep the noise under 45dbs here(改为被动语态）The noise must be kept under 45 dbs here.为什么we被省略?什
主动语态改为被动语态,在什么情况下主动语态的主语被省略?eg:We must keep the noise under 45dbs her
eg:We must keep the noise under 45dbs here(改为被动语态）
The noise must be kept under 45 dbs here.
为什么we被省略?什麼情况下才可以省略?

主动语态改为被动语态,在什么情况下主动语态的主语被省略?eg:We must keep the noise under 45dbs hereg:We must keep the noise under 45dbs here(改为被动语态）The noise must be kept under 45 dbs here.为什么we被省略?什
个人觉得应该是根据语境吧
从第一句,我们很明显知道是第一人称,所以就默认了,就省略了
如果是其他人称,应该就不能省略了
希望对你有些帮助

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