I began to collect stamps ten years ago.把它转换为同义句.急把它转换为 I —— —— —— stamps —— ten years ago.的形式,

Question

I began to collect stamps ten years ago.把它转换为同义句.急
把它转换为 I —— —— —— stamps —— ten years ago.的形式,

Answer 1

have been collecting,since 用完成进行时表动作一直持续到现在,并可能持续下去