the pair of glassesThe glasses are not for Lucy. 为什么要用复数 a pair of glasses 呢

The pair of socks_____25yuan. this pair of the shorts是什么意思 The pair of jeans (look,looks) terrible. The pair of glass over ______is__________father's. The pair of giasses () in my handbag the pair of boots算复数吗? _____(be)the pair of glasses yours The pair of trousers fits me pair of pair of How much is the pair of black trousers?同义句--- --- --- --- the pair of black trousers? A pair of trousers 作主语算第三人称单数吗?The trousers A pair of shoes 有没有the pair of shoes或that pair of shoes? the pair of用单还是双?this pair of呢？ this pair of glasses belongs to one of the (牙医) The pair of trousers is made【 from/of】 cottom the pair of glasses on the desk (be)mine The pair of socks ____ in the drawer .(be)