问题详情

School rules:
1．Students should be wearing your school badges(校章)and uniforms.
2．School starts at 7：30 in the morning and finishes at 4：30 in the afternoon. Don"t be late or leave early.
3．Do some cleaning after school to keep the school clean.
4．Those who go to school by bike should apply for a bike permit.请帮忙给出正确答案和分析，谢谢！