--I'm going to act in Jack Chan's new movie.--Cangratulation!You'rereally_______.

问题描述:

--I'm going to act in Jack Chan's new movie.--Cangratulation!You'rereally_______.
--I'm going to act in Jack Chan's new movie.
--Cangratulation! You're really_______.
A.a lucky dogB.a biack sheepC.a cold fishD.a white elephant
谁能详细的解释一下

A.you're really a lucky dog