— You don’t forget when we borrowed that reference book, do you?

— I can’t remember now but ________ sometime last week?

A．might it be

B．could it be

C．could it have been

D．should it have been

摩一阿双杆菌感染常引起（）

A.眦部睑缘炎

B.溃疡性睑缘炎

C.鳞屑性睑缘炎

D.睑腺炎

E.睑板腺囊肿