Water must be kept from running away.这里面keep系动词不是无被动语态会进行时态吗

分类: 作业答案 • 2023-01-17 05:04:57

问题描述：

Water must be kept from running away.这里面keep系动词不是无被动语态会进行时态吗
那这个里面为什么还用 be kept

答

keep sb /sth from doing sth.阻止……做某事,在这里,keep 不是系动词.