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。