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his shoes were worn out.He wanted to buy a new____.a.one b.pair为什么不选a

题目详情
his shoes were worn out.He wanted to buy a new____.a.one b.pair为什么不选a
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答案和解析
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