I think it should not be played because of the time to make phone calls, we don't understand when learning makes learning not a friend, and when she ordered it, we do not understand and do not work.
I think the phone should not play time. Because we do not understand time. Not to make friends, and when I run it, we do not understand and do not work.
I don't think I should play phone class time. Because will make us understand learning time, learning without friends, and when the teacher commands to make we understand and work.