Water must be kept -------away.　A.to run B.runs C.running D.

问题描述：

Water must be kept _______away.　A.to run B.runs C.running D.from running
keep不是系动词吗?不是主动表被动吗?那为什么用kept 后面为什么加from running 固定用法吗?、

1个回答分类：英语 2014-12-12