英语语法问题since ten yearsten years agosince ten years ago这三者在时态上

英语语法问题since ten yearsten years agosince ten years ago这三者在时态上 since ten years since ten years ago区别 since ten years ago怎么变特殊疑问句 1.He （） Hong Kong since ten years ago. 1 We have been here since ten years ago.-------------------- my hometown has changed a lot since ten years ago "They married ten years ago" ten years ago的反义词 现在完成时讲解1.She has worked since ten years ago.2.It is ten year ten years before 和ten years ago 有什么区别? ten years before和ten years ago的区别? 改同义句Tom's father died ten years ago.It ___ ___ years since T