Thereareaboutfifty-twoweeksinayear。Andtherearesevendaysineachweek。ThefirstdayofaweekisSunday。TheotherdaysofaweekbetweenSundayandSaturdayareMonday，Tuesday，WednesdayThursdayandFriday。Mondayisthesecondday，Tuesdayisthethirdday，Wednesdayisthefourthday，Thursdayisthefifthday，andFridayisthesixthday。Whatsthelastday？Doyouknow？