The party last night was ______success. We sang and danced until it came to _______end at 12:00. [ ]

A. A; an            

B. a; the          

C. the; an        

D. /; an

项目建议书在批准的（）基础上进行编制。

A.可行性研究报告

B.初步设计

C.招标设计

D.江河流域综合利用规划或专业规划