followed by-------their students,the famous teacher came int
followed by
-------their students,the famous teacher came into the classroom.
A Followed B,Followed by C being followed DHaving been followed
为什么选B啊,A为什么不可以讷,是不是后面一定要加介词.
还有我弱弱的问一句,如果是填following可不可以啊,