这种鞋卖光了 This kind of shoes is sold out 中为什么用is 而不用去过去时was

这种鞋卖光了 This kind of shoes is sold out 中为什么用is 而不用去过去时was That kind of shit was sold out.was 后为什么用sold? The price of the shoes is ￥12中为什么要用is而不用are this kind of shoes is called trainers This kind of bicycles_______well.A is sold B 英语语法问题we are sold out of this book能不能写成this book is sold out "this kind of shoes is in fashion"or"this kind of shoes are That kind of shoes has ----.A sold out B been sold out 为什么用men of this kind而不用man of this kind this kind of bikes_____ well.A.has been sold B.is sold C.sel Tv sets of this kind ( ) well.a .are sold B.is sold 求详解,如果不能 this kind of shoes后加are 还是is