英语，简单,同意句

I don't know how I should go shopping
The books cost me 100 Yuan.
OK 辛苦做的！ 给分吧！-。-

I dont know how to do shopping

I spent 100 yuan for the books;
The books costed me 100yuan.

第一句:没想出什么合适的。
第二句：I spend 100 yuan on the books.

I have no idea how to go shopping.
The books cost me 100 Yuan.