1.YoumustwearyoursportsshoesintheP.E.class.改为祈使句
2.Youcanpracticetheguitarhere.改为祈使句
3.SelinahastobringherCDpiayertoschool.改为否定句
4.Pleasegetthereearly.改为否定句
WemustwearT-shirtatschool.改为否定句