题目内容：

Of all the sports shoes,John bought ___pair.Then he had some money for socks.
A.a cheaper B the most wonderful C.the least expensive D.the least wonderful
为什么?

优质解答

the least+形容词原级,意为"最不...的"
the least expensive=the cheapest "最不贵的",即"最便宜的".
根据句意"在所有运动鞋中,他买了最便宜的那双,然后他就有钱买袜子."可知,答案选C.