He ____basketball on the plaground just now,but i'm not sure whether he's still there.

来源：百度知道编辑：UC知道时间：2024/05/04 13:01:37

A was seen to play B was seening playing Cis seen to play Dis seening playing

选A
首先，just now(刚才)用于一般过去时，排除C,D
其次，根据题意，他是被看见在操场上打篮球的，所以用被动语态：be seen to do sth.

选B 因为just now 说明时间已过,但是是我亲眼所看到他在打篮球,所以要用过去进行时!

选A