this pair of shoes cost/costs a lot ?

问题描述:

this pair of shoes cost/costs a lot ?
this pair of shoes costs a lot ?
又为什么是they fitme very well?

因为鞋子是复数,它是用双的量词,比如,一双鞋子
a pair of shoes,如果说它们让我穿起来很舒服,当然得是复数形式咯,总不能说是它让我穿起来很舒服吧,你鞋子有穿一脚的吗?是吧?