—— Oh Mrs Green your dress looks very nice. Is it new?—— No I it since two years ago.A

问题补充：

—— Oh, Mrs Green, your dress looks very nice. Is it new?

—— No, I it since two years ago.

A. had. B. have had C. have bought

答案：

解析：句意：哦，格林夫人，你的连衣裙看起来非常不错。它是新的吗？——不，我自从两年前就有它了。结合语境可知下文描述的是从过去一直持续到现在的动作，故用现在完成时态，选项C表示瞬间动作，故选B。