I have konwn Sandy since two years ago 改为同义句

I have konwn Sandy since two years ago 改为同义句 Sandy came to the school two years ago(改为同义句)Sandy _______ _ i have taught in this school since three years ago.改为同义句 i h SINCE TWO YEARS AGO的同义句 I have known sandy since three years ago kitty knew Sandy two years ago(同义句） they have been away from here since two years ago同义句 ___ ___ they have learnt English since three years ago.改为同义句 It was two years ago when I got to know him.（改为同义句） 求!they have been in the army since two years ago的同义句转换~!急啊 she left home two years ago 改为同义句 My brother went aborad two years ago.(改为同义句)