Nancy you are going to buy a flat here aren’t you ?- Yes but I can’t an expensi

问题补充：

--- Nancy, you are going to buy a flat here, aren’t you ?

--- Yes, but I can’t an expensive one .

A. spend

B. afford

C. pay

D. cost

答案：

A. spend

(答案→)B. afford

C. pay

D. cost

解析：：考查固定短语。句意：----Nancy,你打算买一套公寓，是吗？----是的，但我不能承担得起这样昂贵的一套。故选B。