We found a group of students ( ) cards in the classroom.a.playing b.plays c.played d.to play还请您解析一下为什么这么选,
问题描述：
We found a group of students ( ) cards in the classroom.
a.playing b.plays c.played d.to play
还请您解析一下为什么这么选,
答
A
看见大家正在干某事
答
a.playing 正确,是一个现在分词作宾补,因为前面的谓语动词是表示感官的found,这样的话要求是现在分词作宾补,或是一个省略了to的不定式做宾补；
b.plays c.played 都是谓语动词形式,而句中已经有了found
.to play中没有省略to,是错误的