根据上下文和首字母提示填空。
Some students took their first no-teacher exam last week.After the teacher handed out exam papers, he left the classroom and never came back.One of the students collected papers when the exam e_____.
“This test was not only a test of k____, but also a test of moral(道德)”, said the headmaster.Next year it wants 80% of exams to be w____ teachers.But students have different ideas.
Some students think it’s good for t____ to have a test without teachers.First, this change means teachers trust the students very much.Second, they feel more r______ when there is no teacher.Because they think when teachers m______ around the classroom, it makes them nervous.However, o_______ think it’s important to have invigilators(监考人).If there are no teachers, some students may cheat in the exam or check their a______ with each other.On the opposite, teachers will s_____ them from doing that.
Not using invigilators may be a good ideA. But before using it, schools must tell students it is i______ to be honest and try to find ways to stop something unusual in exams.