【正文】
take a history class ? couldn’t afford one ? in those days ? personal puters 現(xiàn)代發(fā)明 在某年、某地發(fā)明 需要做某事 上歷史課 買不起 在過去 個人電腦 A: When was the … invented? B: It was invented in _____. 1c papermaking 造紙術 pass 指南針 printing 印刷術 gunpowder 火 藥 Talk about Chinese great inventions with your partner and write the conversation on your exercise book. homework