（ The ）radio was first invented in Europe?为什么要用THE,而不用/

（ The ）radio was first invented in Europe?为什么要用THE,而不用/ she was listening to the radio in the room.这里radio前面为什么加the His brother was listening to the radio 对listening to the radio 提问 he was listening to the radio at nine last nighthe listened to the radio this night The clockwork Radio British inventor,Trevor Baylis,was listening to a radio programme one day about when i was young i listen to the radio 什么歌 When I was young I'd listen to the radio when I was youg I'd listen to the radio Mary was reading while Bill _______(repair) the radio. 帮个忙,句型转换The radio programme was so convincing that every person believed the story.(改为同义句）I was ＿ ＿ ＿radio programme that every person believed the story. （） I （） making my breakfast,my brother （） listening to the radio用was,were,when,while填空 was you father at home yesterday evening ---yes,he was he__(listen) to the radio I was listening to the radio ____ wI was listening to the radio ____ washing clothes.A.asB.whileC.the timeD.when The radio announced a piece of bad news that the city was（ ）bay the enemy troops two days ago.1.estimated 2.considered 3.occupied 4.included they learn english on the radio句型转换english（）（）on the radio :He___(hear) on the radio that there was a traffic jam so he___(take) the MTR. 【完形填空】 Not very long（1）,the computer was a strange machine.【完形填空】Not very long（1）,the computer was a strange machine.Not many people understand it.Not many people said（2）to it.Today,much of that is changing.The fir 1：She filled a bucket with water to put off the fire.（圆周句） 2:The power was off.He was listening to radio.I was reading a book.(并列复合句)求答案!求翻译,