I have known him for years .很多年用for years .表示?

you have only known him for a I have known him for years .很多年用for years .表示? 句子I knew him for a long time为什么不用 have known用knew? I have known him （ ）two years ago1.since 2.for 3.before 4.when I have known him for ten years的同义句I _____ ____ ____him ten years ago 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 -Do you know the boy over there -Sure.I _ him for years.A、knew B、have known C、was known 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 have known him since he came here对since he came here提问 ___ ___ ___ you known him? 英语翻译I knew him two years ago.[ ]I met him two years ago.[ ]I know him.[ ]I have known him for two years.[ ]We met in college.[ ]Glad to know you.[ ]Glad to meet you.[ ]I haven't seen him for a long time.[ ]How long haven't you seen him [ ]How I have known Cathy for over twenty years.同义句 改成：I have known Cathy for （）（）twenty years. i will marry bill next week.___you have only known him for two months.(you cant be serious)为什么不是that couldnt be better? What I have known? I have known Jim for 5 years.同义句 Ihave known Jim ____ ______ ________ ________.. I have known about Mr White but i don't know him.译成中文 I have deep feelings for him I have deep feelings for him中文解释 英语翻译I had not known him for 20 years without learning that he always .