A:中学生小震上课时认真听讲
B:驾驶员孙某边开车边玩手机
C:游客李某在古迹上乱刻乱画
D:行人张某过马路时跨越护栏
11-3=____
— I'd love to, but I think we shouldn't __________ our progress. We also have a long way to go.