He was seen to go into the room 这里为什么SEEN后加TO
问题描述:
He was seen to go into the room 这里为什么SEEN后加TO
答
主动语态省略不定式to的 被动语态时一定要加上
see sb do sth hear sb do sth make sb do sth watch sb do sth 等 都是这个用法