his shoes were worn out.He wanted to buy a new____.a.one b.pair为什么不选a
问题描述：
his shoes were worn out.He wanted to buy a new____.a.one b.pair为什么不选a
答
鞋是论双的
答
鞋是两只，不是单数，所以不能用one
答
one是一个一只的意思,shoes不是单数,所以不能用one .他的鞋了破了不可能只买一只吧,呵呵pair是一双的意思,即买肯定的一双