I think the trousers are a little expensive can you show me .A. a cheaper one B. an exp

问题补充：

I think the trousers are a little expensive , can you show me .

A. a cheaper one

B. an expensive one

C. a cheaper pair

D. an expensive pair

答案：

A. a cheaper one

B. an expensive one

(答案→)C. a cheaper pair

D. an expensive pair

解析：句意：我认为这裤有点贵，能让我看看便宜的吗？说裤子常用pair，根据前面a little expensive可知此处该用形容词cheaper，所以选C。