Unit 6When was it invented?What is themade of?Its madeofwhere is it made?Its made in cotton bag AmericaSilk Korea Steel Germanysilver Thailand Wood JapanPaper China iPhone Steve JobsJobs_ iPhone.inventediPhone _ by Jobs.was inventediPadWhen were iPhone and iPad invented?They were invited in 2007Jobs was a great _.inventorinventionspaper-making 造纸术造纸术compass 指南针指南针printing 印刷术印刷术 gunpowder 火火 药药Chinese four great ancient inventionsLook at the things below.In what Look at the things below.In what
