一道英语单选There are so many kinds of dresses that I don't know _

一道英语单选There are so many kinds of dresses that I don't know _ There are so many different kinds of Walkmans.l don't know _ There are so many kinds of pens in the shop.I can't decide _ there are so many dresses there that I really do not know __ 1.there are so many kinds of bicycles in the shop.I don't kn There are so many beautiful dresses that I hardly know which There are so many clothes in the shop that I don’t know ____ There are so many kinds of music to hear that you are sure t There are lots of different kinds of food here.I don't know There were so many kinds of hats in the shop that I didn't k 1 There are so many kinds of pens here.I can't decide ____ A There are so many kinds of clothes in the shop.I can't decid