—Do you see John?

—No, but just now, he still __ the room.[ ]

A. is in      

B. was in    

C. into    

D. was into

食管癌术后并发吻合口瘘常发生于术后

A．3～4天

B．15天以后

C．5～6天

D．1～2天

E．7-10天