假性胎囊最可能由下列哪项产生（）。

A.卵黄囊

B.子宫蜕膜管型

C.卵巢肿瘤

D.盆腔炎性病变

E.饮水后扫描

—Why didn't you come to the cinema with us last Saturday?

—Oh, sorry.But I________the film.[ ]

A. see  

B. saw  

C. have seen  

D. had seen