i have known him since he came here对since he came here提问 ___ ___ ___ you known him?

i have known him since he came here对since he came here提问 ___ ___ ___ you known him? What I have known? I have known about Mr White but i don't know him.译成中文 句子I knew him for a long time为什么不用 have known用knew? I have known him for years .很多年用for years .表示? I have known him （ ）two years ago1.since 2.for 3.before 4.when you have only known him for a I Should Have Known 歌词 I would ask Tom to lend us money if I _ him.A.had known B.knew C.have known D.know I have known him since I was a child （ ）（in fact）根据英文解释填单词 I have known him for ten years的同义句I _____ ____ ____him ten years ago If only I __about his coming,I would have met him at the station.A.had known B.knew二选一 -Do you know the boy over there -Sure.I _ him for years.A、knew B、have known C、was known 句型转换1.I have known him for 20 years（提问） ------------- ________________________________?1.I have known him for 20 years（提问）-------------____________________________________?2.Jane has finished her homework.(改为一般疑问 将He is a famous writer 与 I have known him for many years 连成定语从句 Excause me,when__you__the man in bule? Lst year in Nanjing.And I ___ him for about one yearA did;know;have knownB have;known;have knownC did;know;knewD have;known;knew I Should Have Known Better 歌词 I have known nothing about everything是什么意思?