【1.Ioften___________(exercise),butmysisternever____________(exercise).(用正确形式填空)2.Iexercisethreetimesaday.(变为否定句)I___________________threetimesaday3.Sheexercisestwiceaweek.(变为一般疑问句)__________】

　　1.Ioften___________(exercise),butmysisternever____________(exercise).(用正确形式填空)

　　2.Iexercisethreetimesaday.(变为否定句)I___________________threetimesaday

　　3.Sheexercisestwiceaweek.(变为一般疑问句)___________________exercisetwiceaweek?

　　4.Iplaythetrumpetonweekends.(用he改写句子)

　　He_________________________onweekends?