two years have passed 还是two years has passed还是两个都可以?

Have got married for two years与have been married for two years哪个对 I have known Sandy for two years(对for two years提问) My family have been in Beijing for two years.对for two years.划线提问 We have known each other for two years.对for two years提问 two years have passed 还是two years has passed还是两个都可以? we have not seen each other for two years.(提问for two years) They have gone to Beijing two years ago.(改错） I have bought the computer for two years.怎么改? 句型转换I have been learning English for two years I have lived in London for two years 是什么时态 i have lived for two years 改成i__here__ __ __ 同义句转换They have known each other two years. I have been (i ) in keeping fish for two years I have been to China for two years.为什么要改成I have been in China for two years? 怎样理解I have had the bike for two years/since two years ago中的have had They have left for two years.They have been away for two years.两句子有意思文法有何区别? How long have you lived in Suzhou?A.Since two years ago B.For two years ago C.Two years ago We have learned English for nearly two years 对for nearly two years提问____________________________ learned English?