—What a beautiful key ring! is it?—Only 5 yuan.A. How old B. How farC. How long D. How muc

问题补充：

—What a beautiful key ring! is it?

—Only 5 yuan.

A. How old

B. How far

C. How long

D. How much

答案：

A. How old

B. How far

C. How long

(答案→)D. How much

解析：考查情景交际。“多么漂亮的钥匙环啊！多少钱？”“只要5元。”询问价钱用how much。故选D。