( )28.Last winter I often saw some people ________ off the snow in the street.A.to sweep B.swept C我听别人说答案好像是B.为什么啊.不是see sb doing sth 跟often有关系吗?

分类: 作业答案 • 2022-01-02 13:55:58

问题描述：

( )28.Last winter I often saw some people ________ off the snow in the street.A.to sweep B.swept C
我听别人说答案好像是B.为什么啊.不是see sb doing sth
跟often有关系吗?

答

sweep

答

答案：sweep.
see sb doing sth 表示“看见某人正在做某事”,动作正在进行,而see sb do sth.表示“看见某人做了某事”,动作已经结束,完成,句中有often,所以这里用动原sweep.