you should listen carefully in class 改为祈使句you can't arrive late for classyou may close the windowyou can't run in the hallwaysyou can't smoke here
问题描述：
you should listen carefully in class 改为祈使句
you can't arrive late for class
you may close the window
you can't run in the hallways
you can't smoke here
答
Listen carefully in class
Don't arrive late for class
Close the window
Don't run in the hallways
Don't smoke here