We often see him help his classmate.改为被动语态

问题描述:

We often see him help his classmate.改为被动语态

he' s often seen to help his classmates by us.

His classmates are often seen helped by him.

He's often seen to help his classmate.
被动语态中不定式to要还原

为你解答。
We often see him help his classmate.改为被动语态
He is often seen to help his classmates by us.
他经常被我们看见去帮助同学。
解释:主动语态see sb do,被动语态 be seen to do。