Of all the CD players in the shop this one is .A. cheapB. very cheapC. cheaperD. the chea

问题补充：

Of all the CD players in the shop, this one is .

A. cheap

B. very cheap

C. cheaper

D. the cheapest

答案：

A. cheap

B. very cheap

C. cheaper

(答案→)D. the cheapest

解析：根据第一句of all the CD players，中all可以判断出，在三者或三者以上中间，因而在这些比较中，要用形容词的最高级，故选答案为D