Never before did he work harder请翻译一下

Never before did he work harder请翻译一下 never until,only before,ever since这些词组是什么意思,请翻译一下, work hard play harder翻译? he is never stoled anything before ,has he?翻译 he had never called at that house before 翻译 I am_____English ,so I must work harder than before. If you work harder than before,I'm sure you______better_____ never before possible应该怎么翻译?请各位指教, There he had never seen before .A did a girl stand B stood a Where did your father work before he came to Garden City 为什么 He said he would work harder next time,and ____ . he said he would work harder next time,and ____.