用a,an,some完成句子 your shoes are very old.you need____new pair.

题目

用a,an,some完成句子 your shoes are very old.you need____new pair.

答案

用a
some后面要跟复数,you need some new pairs
an 后面跟元音字母 an apple
意思是：你的鞋很旧了,你需要买双新的.