某消化性溃疡患者，原有疼痛节律消失，变为持续上腹痛，伴频繁呕吐，呕吐物含发酵性宿食。最可能的并发症是（）

A.幽门梗阻

B.急性胰腺炎

C.穿孔

D.癌变

E.出血

She________that he write a letter explaining why he didn't turn up at her birthday party.[ ]

A．hoped  

B．supposed

C．expected  

D．urged