Question

【初中英语】被动语态相关题目1 I often see him play the piano after school.

Answer 1

1. He is often seen to play the piano after school.

2.He often hears them sing songs next room.

解析：这些动词真奇怪,主动语态省略to,被动语态to 回来.还有以下动词也一样：watch,help,let ,hear,see ,notice等see sb do sth 变为be seen to do sth 也可以记住是固定结构