Completar Frases GEL73 CEVersión en línea ............ por Tea Cher 1 second Yes first clear helpful sharing stayup 6 fallasleep adults need welcom sleep sugar exams hours condition ideal third people caffeine nervous night papers Jack : How many do you need for ? Mary : I heard that should average 8 hours of sleep per . Jack : , I heard - 8 hours is what most need . Did you ever late ? Mary : Yes , I ? m too to every time before the and the are due . Jack : Me too , so what do you to do to get sleep ? Mary : I think the thing to do is to have a mind . The thing is not to have , alcohol and before sleep . Probably , the thing is to have an ideal sleep . Jack : Thank you for . It ? s really . Mary : You ? re