what's the price of中的be可以使用复数形式吗?还有price要不要变复数?

what's the price of ...price加不加s what's the price of.可省略为what's the price? what's the price of the trousers(同义句） What's the price of the trainers?写出同义句 what‘s the price of the radio?改为同义句 What’s the price of the socks?同义句是什么 What's the price of the skirts?(改为同义词) What's the price of the red skirt?(同义句) what's the price of the dictionary?(改为同义句) what's the price of the shirt?【改为同义句】 What's the price of the ring?同义句改写 what's the price of the coat改同义句 What's the price of the hairbrush同义句转换 what's the price of the sweater?为同义句! What's the price of the black shorts? 句型转换：what’s the price of the b句型转换：what’s the price of the black shoes?=( ) what's the price of the green sweater .price要不要加s What's the price of the trainers?写出同义句What's the price of ( )( )( ) trainers?是这样的,填空