英语脑经急转弯
1.Iftwocatsarebeforeacat,andtwocatsarebehindacat,andacatisinthemiddle,howmanycatsarethereinall______________________________
2.Twoteachersteachatthesameschool.Oneisthemotheroftheother'sson.Whatrelation(关系)aretheytoeachother______________________________
3.Wheredoesafternoonalwayscomebeforemorningintheworld?___________