代课老师走进教室：＂Goodmorning,class.＂全体同学起立：＂Goodmorning，teacher.＂老师：＂Sitdownplease.＂全体同学：＂Thankyouverymuch.＂老师：＂You**teacherissick,sotheEnglishclassIand.＂一同学站起来道：＂Butthissectionclearlyismath.＂老师吃惊：＂Thisisnothighandclass43？＂那同学：＂Thisishighandclass42,thenextishighandclass43.＂这时数学老师正站在门口自个犯嘀咕：＂难道我走错了教室？＂只见代课老师对数学老师说：＂Hi，Youclass.＂数学老师：＂English！看来我真的走错了。＂逐走向另一教室。