这天下午放学后,我因在办公室处理一些事务,比平时迟走一点。回家前,我特意拐个弯到班级教室去看一看,只见几个孩子仍在打打闹闹,说说笑笑,有两个学生用黑板擦拍对方的桌套,其中一个把对方的桌套弄成一个大花脸——一个个白灰印子。学生见到我,十分紧张,立刻停止了打闹。我笑着问:“在干吗呢?” After school this afternoon, I was a bit delayed than usual because I was handling some affairs in the office. Before returning home, I deliberately turned a corner to class classroom to see, I saw a few children are still fooling, talking and laughing, two students use the blackboard to rub the other table sets, one of the other The table sets into a big face - one by one white mark. Students see me, very nervous, immediately stopped slapstick. I smiled and asked: “What are you doing? ”