PresentContinuousTensePresentContinuousTense 现在进行时现在进行时主讲老师：主讲老师：单位：单位：12Sing a songSing a songAre You SleepingAre You SleepingAre You SleepingAre You Sleeping，Are You SleepingAre You SleepingAre You SleepingAre You Sleeping，Brother JohnBrother JohnBrother JohnBrother John！Brother JohnBrother JohnBrother JohnBrother John！Morning bells are ringingMorning bells are ringingMorning bells are ringingMorning bells are ringing，Morning bells are ringingMorning bells are ringingMorning bells are ringingM
