— We expected you yesterday.

— I'm sorry, I ____ you to say that I couldn't be here until today. [ ]

A. must have called

B. would be calling

C. could have been calling

D. should have called

庆大霉素不适宜治疗的感染是（）

A.变形杆菌感染

B.铜绿假单胞菌感染

C.链球菌感染

D.淋球菌感染

E.幽门螺杆菌感染