Never before did he work harder请翻译一下首先翻译一下,然后讲解一下这道题,为什么是did he

Never before did he work harder请翻译一下首先翻译一下,然后讲解一下这道题,为什么是did he What did Mike say?-----He said that his twin brother ( ) before.A.has never surfed B.have never surfed C.had never surfed D.had been surfed he has never (eat) beijing duck before Like A Drug I Never Did Before 歌词 i never did this before对还是错? he is never stoled anything before ,has he?翻译 He was nervous for he ____on before(never operate) he was nervous,because he(never operate)____on before he had never been late for class before,( )he? There he had never seen before .A did a girl stand B stood a girl 请问C是倒装句吗There he had never seen before .A did a girl stand B stood a girl 请问C答案是倒装句的形式吗?原因 并说明选之,及为什么? [W10] John opened the door.There ______ he had never seen before.A.a girl did stand B.a girl stood C.did a girl stand D.stood a girl 翻译包括选项,并分析. He has never been abroad before.这里的been是什么 he had never called at that house before 翻译 ----- ___________ he ___________ (read) this book before ? ------No, never . He has never been abroad before 分析下句子结构 He's never lost a book before.（改为反意疑问句）He's never lost a book before,( )( He also __more exercise then before.did does do哪个? jim does-----（well）in Chinese than he did before