a pair of fists 是看做单数还是复数?（用it 指代还是用they指代?）

a pair of fists 是看做单数还是复数?（用it 指代还是用they指代?） a pair of glasses的单、复数 是a pair of glass 还是a pair of glasses 关于pair的用法a pair of socks 中,主语是pair还是socks? a pair of shoes 单复数This pair of shoes ___ nice.Can I try ___ on?到底应该怎么填?答案给的是is,them.单复数怎么前后不一样呢? a pair of shoes a pair of couple a pair of a pair of Need a pair of a pair of glass是单数还是复数?应该是a pair of glasses 请问是 a pair of glass还是a pair of glasses? 是I have a pair of new shoes.还是 I have a new pair of shoes. A pair of shoes is 10yuan 主语是a pair 其中a 是不是修饰pair吖 是there is a pair of giasses 还是 there area pair of giasses 一片英语阅读高手来下CTom Brown was a good boxer (拳击手) He had a pair of strong fists (拳头) that he never used at ordinary times.He was very successful in boxing and had won many games.On one of his holiday trips in a small town,he h a pair of sth.作主语时,谓语动词的单复数,由哪个词决定? shoes和a pair of shoes的单复数怎么区分