英国和一战前德国政治制度的相同点是       

A．国王或皇帝是国家元首

B．首相是最高决策者和领导者

C．国王或皇帝处于统而不治的地位

D．首相对议会负责

— I felt it very difficult to carry on the work all by myself.  

— I could have helped you, but you _____me to. [    ]

A. hadn't asked  

B. didn't ask  

C. haven't asked    

D. don't ask