I had to buy___because i did't know which book in the shop w

I had to buy___because i did't know which book in the shop w I had to buy __of the books because I didn't know which one 英语翻译I had been journeying,though I did not know it,to meet t 1、I had to buy _____ these books because I didn't know which i don't know what i can buy in the shop 改为同义句 i don't know （ I don't know the w[ ] to the library. I don't know, how much did the book cost.改为宾语从句,谢了 There are so many clothes in the shop that I don’t know ____ i want to study abroad in Europe,i don't know which country I really don't know if I can borrow the book in __ i know nothing about english,so i can't read the book in eng i had my hair in the barber shop 选择 a cutting b.cut c to cut