阅读并给以下五个段落排序，将每个段落前的标号填入下方横线的相应位置。 A. 'I was happy and excited during the exam, because I felt my teachers now trusted me,' said Lang Yudan, a 13-year-old girl in Class 11. B. Before the exam, students had to promise (承诺) they would not cheat (作弊). C. The school says no cheating happened in the test. Next year, it wants 80percent of its exams to be without teachers. D. Have you ever wanted to stop teachers watching you in exams? Well, that has come true for students at the Affiliated Middle School to Northeast Normal University (东北师大附中) in Changchun, Jilin. E. Last week, 169Junior 1 students there took their first no-teacher exam. After the teacher handed out the exam papers, he left the room and never came back. A student collected the papers when the exam ended. 1. 2. 3. 4. 5.