often see sb.do么?

来源：学生作业帮编辑：作业帮分类：综合作业时间：2024/05/22 03:49:46

often see sb.do么?
如题?
In China we often see people dropping litter on streets...
这里为什么答案是有ing的?

see sb doing sth,表示看见某人正在做某事,强调doing这个动作,本句中强调的是扔烟头这个动作

often see sb.do么? sb often do. see sb to do see sb do/doing see sb do sth see sb\sth do see sb do see接从句? 固定结构中例如often see sb.do sth、It's one's duty to do sth.如果跟第三人称关于see sb do和see sb doing的例句 see sb do与see sb doing区别 see sb do和see sb doing的区别 see sb doing 和see sb do区别用法