I often see an old man--newspaper to make a living on the street whenever i pass by the interscenti选A sell 还是B selling

I often see an old man--newspaper to make a living on the street whenever i pass by the interscenti选A sell 还是B selling
I often see an old man--newspaper to make a living on the street whenever i pass by the interscenti
选A sell 还是B selling

I often see an old man--newspaper to make a living on the street whenever i pass by the interscenti选A sell 还是B selling
B selling
这个题是考察see sb do sth 与see sb doing sth 的区别
“see sb do sth ”表示看到某人做某事了,强调看见谁做过什么事.
如：I saw her clean the classroom.
是说我看到她打扫教室了.（强调做过这件事）
而“see sb doing sth ”表示看到某人正在做某事强调“看见某人正在做某事”
如：I saw her cleaning the classroom.
我看到她正在扫打教室（强调正在做某事）
这个题是说每当我路过的时候,看到一个老人正在为生计而卖报纸.应该是正在做.所以用selling.
像see 这样的感官动词还有hear , feel , watch , notice （注意到）都可以跟do 或doing分别表不同的意思
如：I heard him play the piano.
我听到他弹钢琴了.
I heard him playing the piano.
我听到他正在弹钢琴.

selling 因为是一个动作（瞬间），你不可能看他卖报纸的整个过程
且用动名词修饰old man

肯定是选B，see sb doing sth,其实selling newspaper to make a living on the street 都是修饰an old man的，都是作为定语成分的，所以应是非谓语结构，又因为是被动关系，就用进行时了！
O(∩_∩)O~

B 在这里表示动作的持续性，同时也有sell 的搭配