----How much beef do you need to buy?
---- .
A. Two kiloes and a half
B. Two and half a kilos
C. Two and a half kiloes
D. Two and a half kilos
网友回答
A. Two kiloes and a half
B. Two and half a kilos
C. Two and a half kiloes
(答案→)D. Two and a half kilos
解析：two kilos and a half = two and a half kilos 两公斤半。选项AB结构有误，选项C，kilo后面不加es，故选D。