Question

Do you often see her ________ volleyball on the playground?

Answer 1

我先来说一下see的用法;

1】 see sb do sth 看见某人做过某事,或者经常做某事,表示某一个一般性的动作

例句：I often see him draw a picture.

2】 see sb doing sth 看见某人正在做某事,强调正在做,

例句：When I pass the window I see him drawing a picture.

3】 be seen to do ,用于被动语态还原to 被看到了做什么.

例句：He is seen to draw a picture.

所以上面的题应该选A,