60% of the students think it's neccesary to have evening classes, because evening class can provide a good environment of studing under the teacher's guidance. While 25% students have a opposite opinion, they think they will be affected by other students in the class, so they can not learn well, otherwise, It's unsafe to go home after evening classes.
For the rest of the students, It makes no difference to them, they just obey the school's decision as long as they can have enough time to study.
60% said: ① to late ② ③ has a good environmental management and guidance teacher 25% said: don't late ① ② sometimes influenced by the students, learn well ③ home alone at night without safety 15% said: ① indifferent, ② follow schools of arrangements to ensure that your learning time