It was (when)Asimov was eleven years old (that) his talent for writing became obvious成分 特别是为什么这么用

It was (when)Asimov was eleven years old (that) his talent for writing became obvious成分 特别是为什么这么用 It was when Asimov was eleven years old ________ his talent ________ writing became obvious.A.when; for B.that; on C.that; for D./; on When was it taken When was it built? when was it when it was so warm When was it的中文意思是什么 I Was There When It Happened 歌词 He was sleeping late when it arrived 求when it was me 中文歌词 It was s_ when I woke up. when was it invented?是人教版九册第几单元? 英语-Unit 9 When was it when it was my turn to it was sunday morning in may . when It was a cold night when he was on duty When+++and++++where+++was++++it++++that++++he++++was+++++born? yaoming was hurt .when was that?为啥不是when was it?