The second —— invention is computer

The camera is one of great ——（invent）.写什么? BBC Radio 1.a festival inside the Second Life game选项是 join create invent 时态自己用 The second —— invention is computer Li Lin came ____ in the English—speaking contest.A.the second B.second C.a second D.seconds Mr Zhang asked me ————question before i could answer————.A the second； the first B a second； a first C a second ,the first D the second； a first为什么选C the second The second the second the second the second the second The Second The machine ___(invent) many years ago. Who ____ the electric lights?(invent) 补全问句：（）Is the art room?—It”s on the second fioor. All the great______ are respected by the world.(invent) the second和a second的区别 急,second 和 the second什么区别