改错oneenteringtheclassroomthestud
one entering the classroom the students stood up and said good morning 详细解释,谢谢
主语混乱，on entering the classroom的逻辑主语应是teacher. 而 on entering the classroom ，the students stood up and said good morning的主语是students。 汉语翻译就成了：学生一到教室，就站起来说早上好。