I have known him （ ）two years ago1.since 2.for 3.before 4.when

I have known him （ ）two years ago1.since 2.for 3.before 4.when I have known him since I was a child （ ）（in fact）根据英文解释填单词 i have known him since he came here对since he came here提问 ___ ___ ___ you known him? 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 What I have known? I've known him （since he came him）.(对括号部分提问） （ ）（ ）（ ）you known him? I've known him _since he came him._(对划线部分提问） ------ -------- --------- you known him? 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? 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 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 I have known Cathy for over twenty years.同义句 改成：I have known Cathy for （）（）twenty years. -Do you know the boy over there -Sure.I _ him for years.A、knew B、have known C、was known -Is John()friend of yours?-Yes.I have known him since be was-Is John()friend of yours?-Yes.I have known him since be was（）one-year-old boy.Now John is famous as（）artist.A.a；an；an B.a；a；a C.the；an；an D.a；a；an