keep是使役动词,为什么它可以keep sb.do sth.这样用?
可不可以:使役动词+sb.+doing sth.若不能,keep也是使役动词,为什么它可以?
hlep是使役动词吗?help sb do sth 还是 help sb to do sth 使役动词有哪些?
keep sb to do sth
keep sb do sth 还是keep sb doing sth?
关于使役动词getget是使役动词,后应接省略to的动词不定式.但为什么会有Get sb to do sth 这个用法.
请问:是keep sb. do sth.还是 keep sb doing sth.
keep词组有keep sb doing sth或keep sb to do sth吗
使役动词中make,let,have sb.do sth.还是sb.to do sth.
keep sb do sth 与keep sb to do sth的区别是什么
keep sb ()sth
keep 用法一般是 keep sb doing sth到底有没有keep sb to do sth?我看有的人说有,有
keep sb doing sth 和keep sb to do sth 有什么区别啊